Add copyright notice to all .sh files

build/make/armlink_adapter.sh

build/make/gen_msvs_def.sh

build/make/gen_msvs_proj.sh

build/make/gen_msvs_sln.sh

build/make/iosbuild.sh

build/make/msvs_common.sh

test/aom_multi_resolution_encoder.sh

test/aom_temporal_svc_encoder.sh

test/aomcx_set_ref.sh

test/aomdec.sh

test/aomenc.sh

test/av1_spatial_svc_encoder.sh

test/decode_to_md5.sh

test/decode_with_drops.sh

test/examples.sh

test/resize_util.sh

test/set_maps.sh

test/simple_decoder.sh

test/simple_encoder.sh

test/tools_common.sh