Add NOTICE.txt and dependencies file to zip (#212)

* Add NOTICE.txt file to zip

* Add dependencies list

Author: simitt

apm-lambda-extension/Makefile

@@ -44,6 +44,8 @@ lint:
 build: check-licenses gen-notice
 	GOOS=linux go build -o bin/extensions/apm-lambda-extension main.go
 	chmod +x bin/extensions/apm-lambda-extension
+	cp NOTICE.txt bin/extensions/NOTICE.txt
+	cp dependencies.asciidoc bin/extensions/dependencies.asciidoc
 build-and-publish: check-licenses validate-layer-name validate-aws-default-region
 ifndef AWS_ACCESS_KEY_ID
 	$(error AWS_ACCESS_KEY_ID is undefined)