[#140] properly save and load html instructions

[matthewhilton]

Closes #140

Changes

• According to https://docs.moodle.org/dev/lib/formslib.php_Form_Definition#editor editors must be PARAM_RAW not PARAM_TEXT (if PARAM_TEXT, html is stripped out which is what was happening before)
• Additionally, the editors needed the format passed in as a integer not a string.

Other misc updates:

• Fix version.php so the ci actually runs - wasn't actually running anything at all before 🙈
• Fix up about a zillion codechecker and phpdoc issues

Testing
Tested this manually saving and loading observation point html, now correctly saves the html tags and displays it properly

[keevan]

Changes look good, and thanks for cleaning up the existing code.