[python] cut unnecessary files to reduce package size (#3579)

python-package/MANIFEST.in

@@ -4,9 +4,13 @@ include *.rst *.txt
 recursive-include lightgbm *.py *.txt *.so
 recursive-include compile *.txt *.so
 recursive-include compile/Release *.dll
-recursive-include compile/compute *
+recursive-include compile/compute/ *.txt
+recursive-include compile/compute/cmake *
+recursive-include compile/compute/include *
+recursive-include compile/compute/meta *
 recursive-include compile/include *
 recursive-include compile/src *
 recursive-include compile/windows LightGBM.sln LightGBM.vcxproj
 recursive-include compile/windows/x64/DLL *.dll
 global-exclude *.py[co]
+exclude compile/compute/.git