Add name to Crashlytics properties file

[pswaminathan]

Without this, using two crashlytics_android_library targets in the same package fails with:

	File "/myapp/app/BUILD.bazel", line 281, column 28, in <toplevel>
		crashlytics_android_library(
	File "/private/var/tmp/_bazel_p/c1a9d93c5d307e720ae1d0573bce325b/external/tools_android/tools/crashlytics/defs.bzl", line 11, column 17, in crashlytics_android_library
		native.genrule(
Error in genrule: generated file 'crashlytics-build.properties' in rule 'crashlytics_lib_staging_crashlytics_setup_properties' conflicts with existing generated file from rule 'crashlytics_lib_debug_crashlytics_setup_properties', defined at /myapp/app/BUILD.bazel:274:28

[ahumesky]

Yes this does look like a bug, thank you for taking a look at this!

I think some files here are conventionally named, like com_crashlytics_build_id.xml, so it might be better to move these into a folder with the name of the target, so how about something like

"_%s_crashlytics/crashlytics-build.properties" % name
"_%s_crashlytics/CrashlyticsManifest.xml" % name
"_%s_crashlytics/res/values/com_crashlytics_build_id.xml" % name

[pswaminathan]

Good idea—changed!

[ahumesky]

Thank you!