feat(developer): (KM Language) Support Anonymous Lists in any() and index()

### Is your feature request related to a problem? Please describe.

I find that in many cases with my keyboards I will use `store()` to define a variable that is used **only** once, either in `any()` or `index()` . So there is no benefit realized from reuse of the variables. The pattern is like:

```
store(foo) 'abcd'
store(bar) 'ABCD'

begin Unicode > use(main)
group(main) using keys

+ any(foo) > index(bar,1)
```

### Describe the solution you'd like

If nothing else, the inline lists will lead to shorter KMN code files:

```
begin Unicode > use(main)
group(main) using keys

+ any('abcd')> index('ABCD',1)
```

### Describe alternatives you've considered

_No response_

### Related issues

_No response_

### Keyman apps

- [ ] Keyman for Android
- [ ] Keyman for iPhone and iPad
- [ ] Keyman for Linux
- [ ] Keyman for macOS
- [ ] Keyman for Windows
- [X] Keyman Developer
- [ ] KeymanWeb
- [ ] Other - give details at bottom of form

### Keyman version

15.0.270

### Operating system

Windows 11

### Device

Windows Laptop

### Target application

_No response_

### Browser

_No response_

### Keyboard name

_No response_

### Keyboard version

_No response_

### Language name

_No response_

### Additional context

_No response_

Start in Keyman Developer's KM language handling for the any() and index() entry points, using the existing store() examples and the proposed anonymous-list syntax as the behavioral reference. Done means expressions such as any('abcd') and index('ABCD',1) are accepted and behave like their stored-variable equivalents.

Written by the indexing model from the issue text.