DOCS: Updated InputValue documentation

[lyndon-unity]

Description

Updated InputValue API documentation

• Documented common types
• Added example
• Documented isPressed property

Testing status & QA

Reviewed generated docs using the DocTools package and checked the validation results

Overall Product Risks

• Complexity: low
• Halo Effect: low

Comments to reviewers

Checklist

Before review:

• Changelog entry added.
  • Explains the change in Changed, Fixed, Added sections.
  • For API change contains an example snippet and/or migration example.
  • JIRA ticket linked, example (case %%). If it is a private issue, just add the case ID without a link.
  • Jira port for the next release set as "Resolved".
• Tests added/changed, if applicable.
  • Functional tests Area_CanDoX, Area_CanDoX_EvenIfYIsTheCase, Area_WhenIDoX_AndYHappens_ThisIsTheResult.
  • Performance tests.
  • Integration tests.
• Docs for new/changed API's.
  • Xmldoc cross references are set correctly.
  • Added explanation how the API works.
  • Usage code examples added.
  • The manual is updated, if needed.

During merge:

• Commit message for squash-merge is prefixed with one of the list:
  • NEW: ___.
  • FIX: ___.
  • DOCS: ___.
  • CHANGE: ___.
  • RELEASE: 1.1.0-preview.3.

After merge:

• Create forward/backward port if needed. If you are blocked from creating a forward port now please add a task to ISX-1444.

[lyndon-unity]

Hmm generated example layout isn't indented as I would expect

[ekcoh]

Approving it since I think its a good improvement, but added a bunch of minor comments which @duckets might also provide guidance regarding

[ekcoh]

@lyndon-unity PR title is not conforming. Prefix by "DOCS: "

[lyndon-unity]

Seems generated code in other areas looks the same so this might just be a preview thing:

[lyndon-unity]

@lyndon-unity PR title is not conforming. Prefix by "DOCS: "

Fixed

[ritamerkl]

rather minor proposals, approving

[ekcoh]

Seems to be CI failures:

PVP-150-1: UnityEngine.InputSystem.InputValue: TValue Get(): in block context (only allowed in top-level context)
PVP-150-1: UnityEngine.InputSystem.InputValue: isPressed: in block context (only allowed in top-level context)
PVP-150-1: UnityEngine.InputSystem.InputValue: isPressed: unexpected ; use instead

[ekcoh]

CI failures

[ekcoh]

LGTM, nice to see CI problems fixed