Load rules from Starlark

[avdv]

Is your feature request related to a problem? Please describe.
Native rules should be loaded from Starlark.

• C++ rules should be loaded from rules_cc
• Java rules should be loaded from rules_java
• Protobuf rules should be loaded from rules_proto

Describe the solution you'd like
Currently, we rely on the native rules being available automatically. We should migrate away from that and explicitly depend on the appropriate ruleset.

The buildifier warnings currently suppressed should be enabled.

Running buildifier will automatically fix the problems in the build file, but we need to ensure the rulesets are properly defined.

Describe alternatives you've considered

Additional context
#2323