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>

tier0/dbg.cpp

@@ -31,6 +31,10 @@
 #include "xbox/xbox_console.h"
 #endif
 
+#ifdef ANDROID
+#include <android/log.h>
+#endif
+
 #include "tier0/etwprof.h"
 
 #ifndef STEAM
@@ -309,6 +313,10 @@ static SpewRetval_t _SpewMessage( SpewType_t spewType, const char *pGroupName, i
 		nLevel
 	};
 
+#ifdef ANDROID
+    __android_log_print( ANDROID_LOG_INFO, "SRCENG", "%s", pTempBuffer );
+#endif
+
 	g_pSpewInfo = &spewInfo;
 	ret = s_SpewOutputFunc( spewType, pTempBuffer );
 	g_pSpewInfo = (int)NULL;