[feature] Control watches via CLI

[dgtlmoon]

Flask i think supports @cli type prefixes to functions, so some options like recheck could be a CLI option for those who have special use cases (then an application could also call without using the API, such as cron, or something else in your workflow)

for example

$ changedetection.io queue af114c38-20c4-4ccd-9b6a-cfcc17e4dbd0

$ changedetection.io pause af114c38-20c4-4ccd-9b6a-cfcc17e4dbd0

$ changedetection.io delete af114c38-20c4-4ccd-9b6a-cfcc17e4dbd0