Add missing files to cmake

[ChillerDragon]

fixes

-- Found OpenGL: /usr/lib/x86_64-linux-gnu/libOpenGL.so
CMake Warning (dev) at CMakeLists.txt:368 (message):
  DATA does not contain every file from directory data
Call Stack (most recent call first):
  CMakeLists.txt:1883 (set_glob)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at CMakeLists.txt:385 (message):
  Entries only present in data:
  /home/chiller/Desktop/git/ddnet_client/data/autoexec_server_twplus.cfg;/home/chiller/Desktop/git/ddnet_client/data/maps/dm_gfountain.map;/home/chiller/Desktop/git/ddnet_client/data/maps/dm_jungle_large_tele.map;/home/chiller/Desktop/git/ddnet_client/data/maps/dm_large_tele.map;/home/chiller/Desktop/git/ddnet_client/data/maps/htf_dm1.map
Call Stack (most recent call first):
  CMakeLists.txt:1883 (set_glob)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Looking for WavpackOpenFileInputEx