Change Bazel naming convention for halide_generator()
Change Bazel naming convention for halide_generator()

Change naming convention for Bazel halide_generator() rule to bring in line with other Halide build systems: require suffix to be ".generator" rather than "_generator".

psuriana/Halide,psuriana/Halide,psuriana/Halide,psuriana/Halide,psuriana/Halide,psuriana/Halide,psuriana/Halide