Added cpp gitignore from https://github.com/github/gitignore/blob/master/C%2B%2B.gitignore

.gitignore

@@ -137,4 +137,37 @@ dmypy.json
 .pyre/
 # pytype static type analyzer
-.pytype/
\ No newline at end of file
+.pytype/
+
+# Prerequisites
+*.d
+
+# Compiled Object files
+*.slo
+*.lo
+*.o
+*.obj
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+*.dll
+
+# Fortran module files
+*.mod
+*.smod
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a
+*.lib
+
+# Executables
+*.exe
+*.out
+*.app
\ No newline at end of file