Allow Insert in Array using #n form

[James Powell]

Currently use # by itself to insert at end of array.

Allow: #n as insert before element n. Examples:

• #0 insert at front
• #-1 insert in front of last element

Another idea to consider: inserting into a scalar. Example

{“phone number”: “123-4567”}

insert “234-5678” at $.phone number[#0] →

{“phone number”: [“234-5678”, “123-4567”]}

This ties into #67: Get single element as 1-element LabVIEW array

[James Powell]

5042b76dee2bfec3461c1fff343bcf6e4ecf0771 → Implimented [#0]

[James Powell]

Follow on in #89