1. add DTK_DISABLE_LIBRSVG build option to disable librsvg
2. archlinux DTK_DISABLE_LIBRSVG=ON by default
3. use QSvgRenderer instead of librsvg if option on
Log: archlinux build
Change the build dependencies, libfreeimage and libraw are not
required by default, except for debian and linglong builds.
Set DTK_DISABLE_EX_IMAGE_FORMAT=ON to not support extended
image format.
Log: Optinal dependencies libfreeimage and libraw.
Influence: Add build package options
1. Dynamically load libraw.so to support RAW image fomats.
2. Improve some implementations, Update unit cases and docs.
3. Move image-handler from folder example to tool.
Log: Support RAW image formats.
Influence: Add build dependency libraw-dev.
Add the DImagehandler class, provide functions such as reading image,
rotating image, getting image metadata. DImagehandler dynamically load
libfreeimage to support extended image formats.
Log: Add the DImagehandler class.
Influence: Add build dependency libfreeimage-dev.
I change the source code from qmake to cmake. Move the files
which will be install to the /usr/include to $root/include, which will
help to mattern match and easylier to do install. and the change will
break the build of qmake
Log: from qmake to cmake
Influence: qmake is breaked