Function mergeOptions

mergeOptions(
    mergeTarget: any,
    options: any,
    option: string,
    globalOptions?: any,
): void
This is used to set the options of subobjects in the options object.

A requirement of these subobjects is that they have an 'enabled' element which is optional for the user but mandatory for the program.

The added value here of the merge is that option 'enabled' is set as required.
Parameters
- mergeTarget: any
  Either this.options or the options used for the groups.
- options: any
  Options.
- option: string
  Option key in the options argument.
- globalOptions: any = {}
  Global options, passed in to determine value of option 'enabled'.
Returns void
- Defined in src/util.ts:1295