Issue 18 functionality to return all parameters when parameter-names are not given

[fjugipe]

Closes #18

• Parameter name is no longer required in the query

  • Returns all parameters and values from /locations/{id}, /position and /area endpoints without parameter name in query
    • Returns all also when parameter-name is given, but empty string

• Updates Swagger documentation with examples of time date

• Improves error handling

  • Return 400 with incorrect coordinates or geometric type
  • Return 400 when time date is wrong format or start time is before end time in query

• Adds unit tests to edr api endpoints

  • Test cases with mocked functions asserting correct calls to functions
  • Test cases to check that incorrect queries returns 400 with descriptive error message

[github-actions]

API Unit Test Coverage Report

File	Stmts	Miss	Cover	Missing
\_\_init\_\_.py	0	0	100%
datastore_pb2.py	58	46	21%	23–68
datastore_pb2_grpc.py	43	23	47%	37–52, 85–87, 92–94, 99–101, 106–108, 112–136, 174, 191, 208, 225
dependencies.py	31	4	87%	23–24, 31, 38
grpc_getter.py	8	4	50%	12–16
locustfile.py	15	15	0%	1–31
main.py	22	3	86%	27, 37, 47
metadata_endpoints.py	19	4	79%	16, 33–66, 70
formatters
\_\_init\_\_.py	12	0	100%
base_formatter.py	7	1	86%	18
covjson.py	52	1	98%	69
routers
\_\_init\_\_.py	0	0	100%
edr.py	72	11	85%	38–61, 111–112, 139–140
records.py	0	0	100%
TOTAL	339	112	67%

API Unit Test Coverage Summary

Tests	Skipped	Failures	Errors	Time
16	0 💤	0 ❌	0 🔥	1.756s ⏱️

[Teddy-1000]

Test looks good, added some comments in dependencies.py

Requested changes have been implemented, can be resolved.