Function signal

signal<T>(value, options?): Getter<T> & Setter<T>
Create a Signal of type T with initial value
Type Parameters
- T
Parameters
- value: T
  Initial value
- Optionaloptions: Options<T>
  Signal options
Returns Getter<T> & Setter<T>
Example: Create new Signal
```
const n = signal(1)
```
Example: Get current value
```
n()
```
Example: Set value
```
n(3)
```
- Defined in reactive.ts:210