changed meson build files for sdl2 windows to allow placement in mingw

dependencies/subprojects/sdl2_image_windows/meson.build

 project('sdl2_image_windows', 'cpp')
 
+fs = import('fs')
+
+new_dir = join_paths('C:/TDT4102-mingw64','SDL2','sdl2_image_lib', 'lib')
+old_dir = join_paths(meson.current_source_dir(), 'lib')
+#Ensuring backwards compatability in transition when SDL2 can be both places
+dir_to_use = fs.exists(new_dir) ? new_dir : old_dir
+
 cxx = meson.get_compiler('cpp')
 sdl2_image_windows_dep = declare_dependency(
-  dependencies : [cxx.find_library('SDL2_image', dirs : join_paths(meson.current_source_dir(), 'lib'))],
+  dependencies : [cxx.find_library('SDL2_image', dirs : dir_to_use)],
   include_directories : include_directories(join_paths('include', 'SDL2')))
  
  
\ No newline at end of file

dependencies/subprojects/sdl2_windows/meson.build

 project('sdl2_windows', 'cpp')
 
+fs = import('fs')
+
+new_dir = join_paths('C:/TDT4102-mingw64','SDL2','sdl2_lib')
+old_dir = join_paths(meson.current_source_dir(), 'lib')
+#Ensuring backwards compatability in transition when SDL2 can be both places
+dir_to_use = fs.exists(new_dir) ? new_dir : old_dir
+
 cxx = meson.get_compiler('cpp')
 sdl2_windows_dep = declare_dependency(
-  dependencies : [cxx.find_library('SDL2main', dirs : join_paths(meson.current_source_dir(), 'lib')), 
-                  cxx.find_library('SDL2', dirs : join_paths(meson.current_source_dir(), 'lib'))],
+  dependencies : [cxx.find_library('SDL2main', dirs : dir_to_use), 
+                  cxx.find_library('SDL2', dirs : dir_to_use)],
   link_args: ['-lmingw32'],
   include_directories : include_directories(join_paths('include', 'SDL2')))