BREAKING CHANGE:
`entryComponent` option has been removed from the `component` schematic as this was intended to be used with the the now no longer supported ViewEngine rendering engine.
Currently, Component and Class have the options to add custom type. In the case of class, It's already working fine with an empty string in type but in the case of component When setting the type to an empty string the file names generated will contain an extra period (.) which breaks the flow.
With this PR, It will generate the files without an extra period (.)
Reference #16811 and #16891
Currently when using `ivy-ngcc` it will print out a warning
```
Failed to read entry point info from //node_modules/@schematics/angular/workspace/files/package.json with error SyntaxError: Unexpected token < in JSON at position 1121.
```
Fixes#13378
This aligns options that do the same thing:
1) `skipSpecs` and `spec` has been deprecated in favor of `skipTests`.
2) `styleext` has been deprecated in favor of `style` since the latest is two words.
Fixes#12784