Generate v1 binding for test-suite

[elmattic]

Changes introduced in this pull request:

• Updates the JSON v1 schemas to resolve type clashes (e.g., Forest RPC types like Uint64 were renamed to EthUint64) to ensure the bindgen works for v1.
• Add support for writing v1 tests.
• Add v1 test example for EthBlockNumber.

cargo run -q --bin cna-test-suite run src/test-suite/config.json.ignoreme
0	ChainHead with no authorization token	passed
1	EthBlockNumber with no authorization token	passed
0 skipped, 2 succeeded, 0 failed