Removed deprecated separate triangle and texture demos, replaced with android build files (wip) (#97)

android/_build.bat

@@ -0,0 +1,23 @@
+@echo off
+if "%1" == "" (
+	echo Please specify the project folder for running the build
+) else (
+	mkdir bin
+	cd %1
+	IF NOT EXIST build.xml (
+		xcopy "..\_setup.bat" ".\" /Y
+		call _setup.bat
+		del _setup.bat
+	)
+	call build %2
+	IF EXIST vulkan%1.apk (
+		if "%2" == "-deploy" (
+			IF EXIST vulkan%1.apk (
+			adb install -r vulkan%1.apk
+			)
+		)	
+		xcopy vulkan%1.apk "..\bin\" /Y
+		del vulkan%1.apk /q
+	)
+	cd..
+)