add parse float from file

three triangle has been move to res/raw/triangle123

Conflicts:
	HelloTriangle/src/example/opengles/hellotriangle/HelloTriangleRenderer.java
save codes from previous commit
Merge branch 'master' of github.com:lc85301/3dmm_hw2

Conflicts:
	HelloTriangle/Makefile
	HelloTriangle/src/example/opengles/hellotriangle/HelloTriangleRenderer.java