quad: don't track Debug and Release directories

quad/xsdk_workspace/real_quad/.gitignore

quad/xsdk_workspace/real_quad/Debug/ext/commands/subdir.mk

...workspace/real_quad/Debug/ext/computation_graph/subdir.mk

...xsdk_workspace/real_quad/Debug/ext/graph_blocks/subdir.mk

quad/xsdk_workspace/real_quad/Debug/ext/quad_app/subdir.mk

quad/xsdk_workspace/real_quad/Debug/ext/queue/subdir.mk

quad/xsdk_workspace/real_quad/Debug/makefile

quad/xsdk_workspace/real_quad/Debug/objects.mk

quad/xsdk_workspace/real_quad/Debug/sources.mk

quad/xsdk_workspace/real_quad/Debug/src/subdir.mk

quad/xsdk_workspace/real_quad/Release/ext/commands/subdir.mk

...rkspace/real_quad/Release/ext/computation_graph/subdir.mk

...dk_workspace/real_quad/Release/ext/graph_blocks/subdir.mk

quad/xsdk_workspace/real_quad/Release/ext/quad_app/subdir.mk

quad/xsdk_workspace/real_quad/Release/ext/queue/subdir.mk

quad/xsdk_workspace/real_quad/Release/makefile

quad/xsdk_workspace/real_quad/Release/objects.mk

quad/xsdk_workspace/real_quad/Release/sources.mk

quad/xsdk_workspace/real_quad/Release/src/subdir.mk