Merge branch '16-separate-ping-container' into 'master'

.gitignore

.gitlab-ci.yml

.vscode/launch.json

.vscode/settings.json

articles/docs/configuration.md

build.sh

client/ts/modules/metric-page/ping.ts

client/ts/modules/metrics/ping.ts

docker-compose.yml

ping/Dockerfile

ping/main/main.go

src/appsettings.development.yml

src/appsettings.yml

src/daemons/Program.cs

src/daemons/Services/CacheService.cs

src/daemons/Services/DemoService.cs

src/daemons/Services/DiscrepancyService.cs

src/daemons/Services/PingService.cs

src/shared/Models/Entities/DataPoints.cs

test/Mock/ResponseHandler.cs