Added gdev-benchmark enforcing for all benchmark commands. Currently, only gdev-benchmark supports the benchmark of all the extrinsics.
Fixed benchmarks in 'g1' and 'gtest' runtime for completion.
Currently, we use gdev-benchmark to generate all the weights placed in runtime/common and used for gdev, g1 and gtest.
This MR leaves room to add a g1-benchmark and a gtest-benchmark (or refactor pallet_membership with benchmark types and functions to prepare identities during the benchmark using the loose coupling between pallets) and create a separated weights mod for each chain.
