Plugin states that it works for issues and pull requests, unfortunately
that's not the case. `getCommiters()` code only relates to pull_requests
GitHub GraphQL information where issues response structure is different.

Bound to: OCM-220

As original repository have this "weird" approach to casing for this
parameter this PR introduces a change for it to be more intuitive,
convention keeping and easier to read.

Bound to: OCM-220

Introduces cross-repository saving functionality
  * introduced `persistance-repository` as optional parameter
  * introduced `PERSISTANCE_GITHUB_TOKEN` as optional ENV variable
  * introduced `repoName` to saved CLA record for clarity
  * code should use persistance github token and save CLA acceptance
    into `persistance-repository`
  * aded README related to changes

Bound to: OCM-220

As all users making contributions into Ockam repositories needs to sign
the CLA beforehand this workflow will give prompt them for approval and
manage the persistence.

It occurs that Github names pull request comment event as issue_comment which
resulted in running incorrect graphql handler.

Adding missing definitions for action inputs

These changes introduces possibility to re-run workflows from within
master-run action handling. You should be able to: rerun recently
failed workflow, correctly pass workflow as success in case of fork PR
opened with CLA signed (no message will be post due to token read
limitation), allow to read CLA document cross repository without auth
token (as github token is limited to specific repo for fork PR and
persistance token does not exist)

Fixing the edge case where re-run would create additional re-run as
conclusion was reacting to everything else than success which was
incorrect.

This PR introduces additional changes to match how currently CLA
workflow works. It should react on issues and PRs correctly while also
give better end-flow.