automatically claim membership (!219)

* increase node spawn timeout to avoid failure

* add points in docstrings

* review

* add missing constant annotation

and update doc

* detail integration test

* comments

* update metadata

* refac certification checks

* clean up error messages and namings

* automatic membership after distance eval

add more details to idty creation test

cargo check ok

add integration test and fix behavior

fix benchmarks for renaming

cargo check ok

cargo test ok

add certification count check

update benchmarks

update distance setup handler

fix weight info

update metadata and generated doc

fix cucumber

distance pallet unit test stub

update metadata and generate doc after rebase

make membership claim no-op an error

update metadata with new error

wip

add comments

add membership renewal antispam

and clean up pending membership parameters

test it

not compatible with keeping distance result

change renewal antispam

metadata

fix param for other runtimes

fix e2e test

remove membership calls

adjust integration tests accordingly

update metadata

fix cucumber

clean up benchmarks and other tests

wip