ThorVG: update to v0.11.0 release.

See https://github.com/thorvg/thorvg/releases/tag/v0.11.0

+ Infrastructure
    Repository folder structure was make it more intuitive and coherent.
        "thorvg/src/lib" -> "thorvg/src/common"
            (providing essential common functionalities
                used internally among the renderer and sub-modules)
        "thorvg/src/lib" -> "thorvg/src/renderer"
            (for vector drawing features)

+ SVG related
    Fix stroke regression https://github.com/thorvg/thorvg/issues/1670
    Support stroke dash offset function https://github.com/thorvg/thorvg/issues/1591#issuecomment-1681319321
    Support Focal property in Radial Gradient https://github.com/thorvg/thorvg/issues/1558

1 files changed, 12 insertions, 22 deletions

diff --git a/thirdparty/thorvg/inc/thorvg.h b/thirdparty/thorvg/inc/thorvg.h
index a5efc5ec17..1b9c2d70d3 100644
--- a/thirdparty/thorvg/inc/thorvg.h
+++ b/thirdparty/thorvg/inc/thorvg.h
@@ -171,7 +171,7 @@ enum class CompositeMethod
     AlphaMask,          ///< Alpha Masking using the compositing target's pixels as an alpha value.
     InvAlphaMask,       ///< Alpha Masking using the complement to the compositing target's pixels as an alpha value.
     LumaMask,           ///< Alpha Masking using the grayscale (0.2125R + 0.7154G + 0.0721*B) of the compositing target's pixels. @since 0.9
-    InvLumaMask,        ///< Alpha Masking using the grayscale (0.2125R + 0.7154G + 0.0721*B) of the complement to the compositing target's pixels. @BETA_API
+    InvLumaMask,        ///< Alpha Masking using the grayscale (0.2125R + 0.7154G + 0.0721*B) of the complement to the compositing target's pixels.
     AddMask,            ///< Combines the target and source objects pixels using target alpha. (T * TA) + (S * (255 - TA)) @BETA_API
     SubtractMask,       ///< Subtracts the source color from the target color while considering their respective target alpha. (T * TA) - (S * (255 - TA)) @BETA_API
     IntersectMask,      ///< Computes the result by taking the minimum value between the target alpha and the source alpha and multiplies it with the target color. (T * min(TA, SA)) @BETA_API
@@ -240,6 +240,7 @@ struct Matrix
     float e31, e32, e33;
 };
 
+
 /**
  * @brief A data structure representing a texture mesh vertex
  *
@@ -622,14 +623,16 @@ public:
     virtual Result push(std::unique_ptr<Paint> paint) noexcept;
 
     /**
-     * @brief Sets the total number of the paints pushed into the canvas to be zero.
-     * Depending on the value of the @p free argument, the paints are freed or not.
+     * @brief Clear the internal canvas resources that used for the drawing.
+     *
+     * This API sets the total number of paints pushed into the canvas to zero.
+     * Depending on the value of the @p free argument, the paints are either freed or retained.
+     * So if you need to update paint properties while maintaining the existing scene structure, you can set @p free = false.
      *
      * @param[in] free If @c true, the memory occupied by paints is deallocated, otherwise it is not.
      *
      * @return Result::Success when succeed, Result::InsufficientCondition otherwise.
      *
-     * @warning If you don't free the paints they become dangled. They are supposed to be reused, otherwise you are responsible for their lives. Thus please use the @p free argument only when you know how it works, otherwise it's not recommended.
      * @see Canvas::push()
      * @see Canvas::paints()
      */
@@ -818,7 +821,7 @@ public:
     /**
      * @brief Resets the properties of the shape path.
      *
-     * The color, the fill and the stroke properties are retained.
+     * The transformation matrix, the color, the fill and the stroke properties are retained.
      *
      * @return Result::Success when succeed.
      *
@@ -1038,7 +1041,7 @@ public:
      *
      * @return Result::Success when succeed, Result::NonSupport unsupported value, Result::FailedAllocation otherwise.
      * 
-     * @BETA_API
+     * @since 0.11
      */
     Result strokeMiterlimit(float miterlimit) noexcept;
 
@@ -1192,7 +1195,7 @@ public:
      *
      * @return The stroke miterlimit value when succeed, 4 if no stroke was set.
      *
-     * @BETA_API
+     * @since 0.11
      */
     float strokeMiterlimit() const noexcept;
 
@@ -1307,17 +1310,6 @@ public:
     Result size(float* w, float* h) const noexcept;
 
     /**
-     * @brief Gets the pixels information of the picture.
-     *
-     * @note The data must be pre-multiplied by the alpha channels.
-     *
-     * @warning Please do not use it, this API is not official one. It could be modified in the next version.
-     *
-     * @BETA_API
-     */
-    const uint32_t* data(uint32_t* w, uint32_t* h) const noexcept;
-
-    /**
      * @brief Loads a raw data from a memory block with a given size.
      *
      * @retval Result::Success When succeed, Result::InsufficientCondition otherwise.
@@ -1863,8 +1855,7 @@ public:
 
 /**
  * @brief The cast() function is a utility function used to cast a 'Paint' to type 'T'.
- *
- * @BETA_API
+ * @since 0.11
  */
 template<typename T>
 std::unique_ptr<T> cast(Paint* paint)
@@ -1875,8 +1866,7 @@ std::unique_ptr<T> cast(Paint* paint)
 
 /**
  * @brief The cast() function is a utility function used to cast a 'Fill' to type 'T'.
- *
- * @BETA_API
+ * @since 0.11
  */
 template<typename T>
 std::unique_ptr<T> cast(Fill* fill)