Ignore java/lite/target

Previously, some proto field names would cause the java code generator to generate accessor names that conflict with method names from the message super classes/interfaces.
A list of field names that cause such conflicts previously existed, but the list did not contain every field name that would cause a conflict.
Additionally, only snake_case field names would be detected. If the field name was in camelCase, the conflict would not be detected.

This change adds the complete set of field names that will cause assessor name conflicts, and detects conflicts in both snake_case and camelCase field names.

Fixes protocolbuffers#8142

…res.

Previously, some protobuf field names beginning with leading underscores (e.g. _class) would cause uncompilable java code to be generated due to assessor name conflicts.
Now, non-conflicting java accessor method names are created for those fields

…l case

Rename snakeCaseToCamelCase to snakeCaseToLowerCamelCase
Add snakeCaseToUpperCamelCase
Add clarifying in-line comments for field name generation
Remove explicit version numbers from references.

…m:philsttr/protobuf into resolve_java_field_name_accessor_conflict

are colliding -> collide