Add a validate_cache parameter to the five principal caching methods:
- _get_key_from_path
- _get_keypair_from_path
- _get_pubkey_from_path
- get_script_from_path
- get_address_from_path
and to the five convenience methods that wrap the above:
- get_script
- get_addr
- script_to_addr
- get_new_script
- get_new_addr
The value of this new parameter defaults to False in all but the last
two methods, where we are willing to sacrifice speed for the sake of
extra confidence in the correctness of *new* scripts and addresses to
be used for new deposits and new transactions.
Matt Whitlock