Merge branch '4-add-events-to-ohsome2x-for-better-control-from-an-outer-process-onerror-onprogress-onfetch' into 'master'

Resolve "Add events to ohsome2x for better control from an outer process (onError, onProgress, onFetch, onFinished)"

Closes #4

See merge request !4

adding dynamic retries with adjusted fetch size
adding custom Ohsome2XError for error handling

fix some typos in README for ohsome API 1.0

See merge request !3

Add LICENSE file (MIT)

See merge request !2

resolves #2 by removing empty params completely from query params

Closes #2

See merge request !1

README.md preparations for publishing on npm. Added info for installation, usage, examples, related links etc.

changed ohsomeQueryConfig type should always use full ohsomeApi path. For backward compatibility /groupBy/boundary will be appended, if missing

extended ohsome-api query types to support point, line and polygon in addition to node, way and relation

Resolve "support contribution view queries, e.g. for users/ requests"

Closes #3

See merge request !1

#3

#3