Everything what was in src/ is now in src/Corrade, everything from
src/Plugins is now in src/MagnumPlugins, everything from external/ is in
src/MagnumExternal. Added new CMakeLists.txt file and updated the other
ones for the moves, no other change was made. If MAGNUM_BUILD_DEPRECATED
is set, everything compiles and installs like previously except for the
plugins, which are now in MagnumPlugins and not in Magnum/Plugins.
Implementation is moved into `do*()` private virtual functions, public
interface is doing additional sanity checks around them. Opening files
is by default done in base implementation, which loads the files into
memory and then calls function for opening raw data.
Added interface for opening multi-file fonts from raw data, default
implementation just calls single-file implementation.
Function for creating glyph cache converts the text from UTF-8 to UTF-32
and then calls the implementation, removing the burden from
reimplementing this in each plugin.
Added unit test for file and single data opening, bumped plugin version
to 0.2.
Implementation is moved into private virtual `do*()` functions and the
public interface does additional checks aroung them to simplify plugin
development. Opening files is by default done by the base
implementation, which then calls function for opening raw data with file
contents.
Added test for file opening, bumped plugin interface version to 0.3.
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Vladimír Vondruš