[1.3.x Blocks] Updated Blocks module for HtmlBlock editor hooking

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | -
| Fixed tickets | #1726
| Refs tickets  | https://github.com/zikula/core/pull/1741
| License       | MIT
| Doc PR        | -

Updated the Blocks System module for the 1.3.x branch with a new version and Hook enabling which makes usage of Scribite 5 possible. Hooks for the HTML block could have been there already, but in previous version of Scribite this worked also by manually activating Scribite.
not sure the dependency is needed since the user will never independently install the Blocks module to see the dependency