Add power display widget

Display/src/app/components/power/power.component.html

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+<div class="power-current">
+    <div *ngIf="latestStatus === null">
+        Loading...
+    </div>
+    <div *ngIf="latestStatus !== null">
+        <table>
+            <tr>
+                <td class="power-current-header">
+                    Generation
+                </td>
+                <td>
+                    {{ latestStatus.Generation < 0 ? 0 : latestStatus.Generation }}
+                </td>
+            </tr>
+            <tr>
+                <td class="power-current-header">
+                    Consumption
+                </td>
+                <td>
+                    {{ latestStatus.Consumption < 0 ? 0 : latestStatus.Consumption }}
+                </td>
+            </tr>
+        </table>
+    </div>
+</div>

Display/src/app/components/power/power.component.scss

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+.power-current {
+  font-size: 14px;
+  padding: 10px;
+}
+
+.power-current-header {
+  font-weight: 500;
+  text-align: right;
+  padding-right: 10px;
+}

Display/src/app/components/power/power.component.spec.ts

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+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { PowerComponent } from './power.component';
+
+describe('PowerComponent', () => {
+    let component: PowerComponent;
+    let fixture: ComponentFixture<PowerComponent>;
+
+    beforeEach(async(() => {
+        TestBed.configureTestingModule({
+            declarations: [PowerComponent]
+        })
+            .compileComponents();
+    }));
+
+    beforeEach(() => {
+        fixture = TestBed.createComponent(PowerComponent);
+        component = fixture.componentInstance;
+        fixture.detectChanges();
+    });
+
+    it('should create', () => {
+        expect(component).toBeTruthy();
+    });
+});

Display/src/app/components/power/power.component.ts

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+import { Component, OnInit } from '@angular/core';
+import { PowerService } from '../../services/power/power.service';
+import { PowerStatus } from '../../models/power/power-status';
+
+@Component({
+    selector: 'app-power',
+    templateUrl: './power.component.html',
+    styleUrls: ['./power.component.scss']
+})
+export class PowerComponent implements OnInit {
+    public latestStatus: PowerStatus;
+    constructor(private powerService: PowerService) { }
+
+    ngOnInit() {
+        this.powerService.getLatestStatus().subscribe(s => this.latestStatus = s);
+    }
+}