Add new cdn bucket endpoint

[fealebenpae]

No description provided.

[coveralls-official]

Pull Request Test Coverage Report for Build yavor.georgiev_361

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 198 unchanged lines in 22 files lost coverage.
• Overall coverage decreased (-0.06%) to 91.602%

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Files with Coverage Reduction	New Missed Lines	%
test/test_index_string.cpp	1	94.13%
src/realm/sync/network/websocket.cpp	2	75.46%
src/realm/util/file.cpp	2	81.63%
test/test_sync.cpp	2	93.96%
src/realm/query_expression.cpp	3	87.03%
src/realm/sort_descriptor.cpp	3	94.33%
src/realm/sync/network/network.cpp	3	89.86%
src/realm/sync/noinst/protocol_codec.hpp	3	76.72%
src/realm/sync/noinst/client_reset.cpp	4	92.99%
src/realm/sync/transform.cpp	4	61.71%

Totals
Change from base Build 1727:	-0.06%
Covered Lines:	230372
Relevant Lines:	251492

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💛 - Coveralls