FWF-4762 Upgrade to Version 6.1.0

[leodube-aot]

Link to Jira Ticket

https://formio.atlassian.net/browse/FWF-4762

Description

What changed?

• Git merged latest upstream version (6.1.0) from formio.
• Kept custom AOT code where applicable.
• Uses custom npm package for now: https://www.npmjs.com/package/@leodube/formiojs

Breaking Changes / Backwards Compatibility

Form component:

<Form
	// form={form} becomes:
	src={form}
	
	// formReady={(e) => { formRef.current = e; }} becomes:
	onFormReady={(e) => { formRef.current = e; }}
	
	// hideComponents={hideComponents} is no longer valid. Pass through options.hide param instead.
	// showHiddenFields={false} is no longer valid. Pass through options.showHiddenFields param instead.
	// For more about form options, see: https://help.form.io/developers/form-development/form-renderer#form-renderer-options
/>

FormBuilder component:

<FormBuilder
	// form={form} becomes
	initialForm={form}
/>

Dependencies

• For local development, requires using formio.js v5.2.2: https://github.com/leodube-aot/formio.js/tree/5.2.2

How has this PR been tested?

• View ticket and testing info: https://aottech.atlassian.net/wiki/x/AYCAoQ

Checklist:

• I have completed the above PR template
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (if applicable)
• My changes generate no new warnings
• My changes include tests that prove my fix is effective (or that my feature works as intended)
• New and existing unit/integration tests pass locally with my changes
• Any dependent changes have corresponding PRs that are listed above