Added tool to run the redirect server from the command line

[michael-wb]

What, How & Why?

Added a command line tool to the test/object-store/tools directory that runs the redirect server outside of the tests for validating the location endpoint and http/websocket redirection support within Core.

☑️ ToDos

• [ ] 📝 Changelog update
• [ ] 🚦 Tests (or not relevant)
• [ ] C-API, if public C++ API changed
• [ ] bindgen/spec.yml, if public C++ API changed

[coveralls-official]

Pull Request Test Coverage Report for Build michael.wilkersonbarker_1375

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 91 unchanged lines in 15 files lost coverage.
• Overall coverage decreased (-0.007%) to 91.095%

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Files with Coverage Reduction	New Missed Lines	%
src/realm/array_string.cpp	1	88.03%
src/realm/mixed.cpp	1	86.75%
src/realm/sort_descriptor.cpp	1	94.06%
src/realm/sync/instructions.hpp	1	76.71%
test/test_query2.cpp	1	98.73%
src/realm/sync/network/http.hpp	2	82.27%
src/realm/sync/client.cpp	3	90.96%
src/realm/sync/noinst/protocol_codec.hpp	3	75.74%
src/realm/table.cpp	3	90.46%
src/realm/sync/instruction_applier.cpp	5	68.01%

Totals
Change from base Build michael.wilkersonbarker_1373:	-0.007%
Covered Lines:	217426
Relevant Lines:	238681

---

💛 - Coveralls

[jbreams]

Why do we need this?

[michael-wb]

Why do we need this?

I had used it while writing the tests for #8011 and thought it might be helpful in the future. I can close the PR if you don't see any value in it.