* Consolidate certificate supplier module
Both the proxy and the proxy needs certificate suppliers. The PR
consolidates the module that providings those bindings to a shared
module and switched the proxy to use that module. The prober currently
uses P12 file to store its certificates. I am debating keeping that
supplier ro converting them to PEM files for simplicity.
* Rename mode enum values to be more descriptive
* Update annotation names to be more descriptive
* Allow project dependency to use runtimeClasspath
Project dependency should use runtimeClasspath. However, if
left unspecified, it uses 'default', which is the same as
the legacy 'runtime' configuration. (runtimeOnly dependencies
are left out).
Since runtimeClasspath cannot be referenced directly, we use
a custom config (deploy_jar) as a proxy.
By excluding testjars (leaked into 'compile' by third-party
dependencies) from runtimeClasspath, we prevent them from
getting into release artifacts.
Two meaningful changes in appengine_war.gradle and java_common.gradle
TESTED=Diffed contents of services/{module}/build/exploded-*
Only three jars are removed: hamcrest-core, junit, and
mockito-core.