* put most AbiExample derivations behind a cfg_attr
* feature gate all `extern crate solana_frozen_abi_macro;`
* use cfg_attr wherever we were deriving both AbiExample and AbiEnumVisitor
* fix cases where AbiEnumVisitor was still being derived unconditionally
* fix a case where AbiExample was derived unconditionally
* fix more cases where both AbiEnumVisitor and AbiExample were derived unconditionally
* two more cases where AbiExample and AbiEnumVisitor were unconditionally derived
* fix remaining unconditional derivations of AbiEnumVisitor
* fix cases where AbiExample is the first thing derived
* fix most remaining unconditional derivations of AbiExample
* move all `frozen_abi(digest =` behind cfg_attr
* replace incorrect cfg with cfg_attr
* fix one more unconditionally derived AbiExample
* feature gate AbiExample impls
* add frozen-abi feature to required Cargo.toml files
* make frozen-abi features activate recursively
* fmt
* add missing feature gating
* fix accidentally changed digest
* activate frozen-abi in relevant test scripts
* don't activate solana-program's frozen-abi in sdk dev-dependencies
* update to handle AbiExample derivation on new AppendVecFileBacking enum
* revert toml formatting
* remove unused frozen-abi entries from address-lookup-table Cargo.toml
* remove toml references to solana-address-lookup-table-program/frozen-abi
* update lock file
* remove no-longer-used generic param
Kevin Heavey
Michael Vines
Ryo Onodera