Enable protein selection in analysis window

src/app/analysis.service.ts

...p/components/analysis-window/analysis-window.component.ts

src/app/main-network.ts

src/app/pages/explorer-page/explorer-page.component.html

src/app/pages/explorer-page/explorer-page.component.ts

src/assets/positions/network-KroganSARS-CoV2.json

src/assets/positions/network-TUMHCoV.json

...positions/network-TUMHCoVTUMSARS-CoV2KroganSARS-CoV2.json

src/assets/positions/network-TUMSARS-CoV2.json

...assets/positions/network-TUMSARS-CoV2KroganSARS-CoV2.json