TextField - suffix value and additional info

[mkernohanbc]

Proposed refinements to the Text Field component from @victoriadam:

some additions to this component to be considered:

• Adding a suffix to the right of the input field (e.g. ft, px, etc.)
• Adding an info icon to the right of the label

Thinking about requirements:

Suffix

• Visible unit label positioned to the right of input value
• Likely only used when an input is intended to accept a number value only
• Should appear distinct enough from text input that it doesn't appear to be editable
• Should also consider a use case where an input can accept multiple different units, and user inputting value can change what the units are (eg. from 'mm' to 'cm')

Info icon

• Expected use case would be that the info icon is either a hyperlink or (more likely) an anchor for a tooltip
• Potentially duplicative in terms of functionality with the description field
• Likely context would be user looking for more space-efficient way to provide additional info in a constrained UI