feat(zinkc): make ABI an output option (#193)

* feat(zinkc): embed ABI

* chore(cli): re-assemble command line tools

* feat(zinkc): embed cli in zinkc

* feat(zinkc): write abi to disk if enabled

* chore(abi): lowercase enum

* refactor(examples): use generated ABI for the test of example constructor

* chore(filetests): use filetests instead of zinkc-filetests

* chore(ccli): to crates.io

* feat(abi): introduce no-std solidity abi

* docs(RELEASES): append release notes

* chore(workspace): bumps version

* ci(clippy): make clippy happy