feat: add BaseFeeParams::new #1815

Job	Run time
docs	2m 5s
clippy	52s
doctest	1m 47s
cfg-check	1m 25s
feature-checks	2m 56s
fmt	13s
no-std	24s
test stable --no-default-features	1m 47s
wasm-unknown	34s
test stable	1m 43s
wasm-wasi	1m 12s
test stable --all-features	2m 7s
test nightly --no-default-features	2m 46s
test nightly	2m 45s
test nightly --all-features	3m 15s
test 1.76 --no-default-features	1m 1s
test 1.76	1m 12s
	28m 4s

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