v.19.5Build/Testing/Packaging Improvement

Add Support for Cmake Variables Enable_protobuf, Enable_parquet and Enable_brotli Which Allows to Enable/disable the Above Features (same as We Can Do for Librdkafka, Mysql, Etc)

Add support for cmake variables ENABLE_PROTOBUF, ENABLE_PARQUET and ENABLE_BROTLI which allows to enable/disable the above features (same as we can do for librdkafka, mysql, etc). #4669 (Silviu Caragea)