Some source files miss Apache license headers

[daisy-ycguo]

Following Apache license header guideline, all human-readable Apache-developed files that are included within a distribution must include the header text with few exceptions. You can find few exceptions here: which files do not require a license header.

I used Apache Rat to check this repository after excluding a few files, and I got this report. We need to add Apache licensing header to those files.

Unapproved licenses:

  openwhisk-runtime-php/core/php7.1Action/Dockerfile
  openwhisk-runtime-php/tests/src/test/resources/application.conf
  openwhisk-runtime-php/ansible/environments/local/group_vars/all
  openwhisk-runtime-php/ansible/environments/local/hosts

The excluded files are:

**/*.json
**/**.gradle
**/gradlew
**/gradle/**
**/.**
**/templates/**
**/*.j2.*
**/.github/**
**/auth.whisk.system
**/auth.guest
**/i18n_resources.go

[daisy-ycguo]

I suggest to add below files to excluded file list, because they are configuration files with few creativity.

  openwhisk-runtime-php/tests/src/test/resources/application.conf
  openwhisk-runtime-php/ansible/environments/local/group_vars/all
  openwhisk-runtime-php/ansible/environments/local/hosts

[csantanapr]

I think is done now