IMB-35 Add Forms for Serious and irreversible harm section and implementations

[TemitopeAyokuHO]

##What
Add forms screens for the 'serious and irreversible harm' section, aligns with Figma designs IMB-35

##Why
As shown on Figma design, form should be implemented in same flow

##How

• add form path in index.js to match with url provided figma design
• add fields in each form in /fields/index.js file
• add validation to all the fields in validation.js file
• add HTML files and partial page to handle extra text content
  -add javascript and css file to control numbers of country add, once these limit is reached the 'Add another button will be hidden' . this logic is added to assets/index.js and scss. also add a behaviour to the behaviours/harm-country-repeater.js
• add behaviour to control the form loop depends on numbers of countries selected this was implemented in behaviours/
  - harm-country-name.js
  - harm-country-form-loop
• add a summary page to render all answered question and anwser by creating an addition Html page Views/harm-claim-summary

##Test
Tested locally (But a glitch is possible)

[Rhodine-orleans-lindsay]

• The functionality still seems quite buggy particularly the delete functionality on the human-rights-summary page - it seems to be removing the last in the list regardless of which country I select for deletion..
• Linting errors (all testing stages should be passing locally and in drone before you request a review)
• the harm-claim-summary page does not match the figma
• Title tab on harm-claim-summary page is empty
  I haven't reviewed any further yet as it seems there's still a bit of work to be done on this so I will move the ticket back to in progress