feature(ui-library): Added own library of UI components to replace digi-ng. Skeleton is first component moved (TV-850)

Squashed commit of the following:

commit d76e32cd99e2e823142f4410e66c66df5e096041
Author: Daniel Appelgren <daniel.appelgren@arbetsformedlingen.se>
Date:   Thu Oct 28 10:28:02 2021 +0200

    Move styles to own library

commit 85f0a5788ebdd7309499b1b623f4ac1046f45811
Author: Daniel Appelgren <daniel.appelgren@arbetsformedlingen.se>
Date:   Thu Oct 28 10:09:23 2021 +0200

    double quotes in html

commit eeb600cd631e3478c136795a8109e8927546b14b
Author: Daniel Appelgren <daniel.appelgren@arbetsformedlingen.se>
Date:   Wed Oct 27 16:42:48 2021 +0200

    UI library with copy of digi-ng's skeleton

commit 11a24c0eef173e6b2f087eca5e96063036e6394b
Author: Daniel Appelgren <daniel.appelgren@arbetsformedlingen.se>
Date:   Wed Oct 27 16:06:43 2021 +0200

    Update .eslintrc.json

commit 3c4b2e4823dbd8e9ca8dd332966bd10ac0fc098f
Author: Daniel Appelgren <daniel.appelgren@arbetsformedlingen.se>
Date:   Wed Oct 27 15:08:32 2021 +0200

    add nx library

libs/ui/loader/loader.component.ts

@@ -0,0 +1,25 @@
+import { ChangeDetectionStrategy, Component, Input } from '@angular/core';
+import { UiLoaderType } from './loader-type.enum';
+
+@Component({
+  selector: 'ui-loader',
+  templateUrl: './loader.component.html',
+  styleUrls: ['./loader.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class LoaderComponent {
+  private readonly _defaultClass = 'ui-loader';
+  @Input() uiType: UiLoaderType = UiLoaderType.PADDED;
+  @Input() uiSize: 's' | 'm' = 'm';
+
+  get loaderClass(): string {
+    if (this.uiType) {
+      return `${this._defaultClass} ${this._defaultClass}--${this.uiType as string}`;
+    }
+    return this._defaultClass;
+  }
+
+  get spinnerClass(): string {
+    return `${this._defaultClass}__spinner ${this._defaultClass}__spinner--${this.uiSize}`;
+  }
+}