Bump safely

[idky137]

This PR is preliminary work towards updating dependency versions. The desired version have been added to Cargo.tomls but the actual update will be done in a separate PR.

The majority of this pr is removing dependencies. In some places code has been added where required:

• to remove LibRustZcash the CompactTcStreamer is now built locally.
• to remove zebra primitive structs have been added to zingo-rpc::primitives.
• zingo-testutils has been removed apart from code under the nym_poc feature flag, which is to be removed in full once a Nym enhanced zingolib build is complete.

Other work in this PR:

• The Cargo.tomls have been restructured for readability.
• errors have been moved into sub mods and NymError was created to handle Nym related error.
• connect_to_node_get_info integration test was rewritten to use a zingo lightclient, simplifying dependency tree.

Two bugs in test code ware also fixed.

• Adding a panic to the custom test panic handler fixed a bug where, if an auxiliary thread panicked, the whole test was shut down and passed. This now results in a test failure, showing the underlying panic info.
• Due to the block cache not yet being implemented, get_block_range would sometimes timeout. The timeout duration was increased for get_block_range to handle this, however this should be fixed with the block cache.

[zancas]

My review is superficial. This is a major refactor.