Initial android support (#17)

* Upload Android armv7 libs

* Fix debug build

* utlvector: fix undefined behavior

* wscript: add --use-ccache option

* wscript: store ccache in a separate directory

* Propertly use gl4es

* fontconfig: fix font detection

* [android]remove fontconfig dependency

* Add build guide for other platforms

Co-authored-by: JusicP <slender87844@gmail.com>
Co-authored-by: nillerusr <nillerusr@users.noreply.github.com>

filesystem/filesystem_stdio.cpp

@@ -972,7 +972,11 @@ void CStdioFile::FS_fclose()
 		AUTO_LOCK( m_MutexLockedFD );
 
 		struct _stat buf;
+#ifdef ANDROID
+		int fd = fileno( m_pFile ); // need to test this
+#else
 		int fd = fileno_unlocked( m_pFile );
+#endif
 		fstat( fd, &buf );
 
 		fflush( m_pFile );