feat: add support for bsc rpc types #6

Job	Run time
test ubuntu-latest stable --no-default-features	2m 43s
test ubuntu-latest stable	2m 48s
test ubuntu-latest nightly --no-default-features	2m 41s
doctest	3m 12s
docs	1m 54s
test ubuntu-latest nightly	2m 37s
clippy	1m 46s
test ubuntu-latest 1.76 --no-default-features	1m 57s
feature-checks	6m 47s
no-std	32s
test ubuntu-latest 1.76	1m 57s
wasm-unknown	2m 16s
wasm-wasi	3m 3s
test windows-latest stable --no-default-features	6m 17s
cfg-check	1m 12s
test windows-latest stable	7m 8s
fmt	14s
test windows-latest nightly --no-default-features	6m 15s
test windows-latest nightly	5m 52s
test windows-latest 1.76 --no-default-features	5m 44s
test windows-latest 1.76	5m 46s
	1h 12m 41s

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