Enable automatic client reset handling for audit Realms

[tgoyne]

Audit Realms typically don't get client resets due to being very short lived, but restarting sync while one is partially uploaded can result in a bad client file ident error which also blocks uploading any other unuploaded files.

Standard automatic recovery is very inefficient here - it redownloads the already uploaded data for the partition, bypasses the optimization to not actually apply the transaction logs locally, and then rewrites the transaction logs - but doing the optimal thing turned out to actually be pretty complicated and I couldn't get it fully working after spending more time on it than is justified.

[coveralls-official]

Pull Request Test Coverage Report for Build thomas.goyne_851

Details

• 77 of 79 (97.47%) changed or added relevant lines in 2 files are covered.
• 81 unchanged lines in 14 files lost coverage.
• Overall coverage increased (+0.01%) to 91.132%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
test/object-store/audit.cpp	75	77	97.4%

Files with Coverage Reduction	New Missed Lines	%
src/realm/list.cpp	1	87.37%
src/realm/sync/instructions.hpp	1	76.71%
test/test_index_string.cpp	1	93.48%
src/realm/db.cpp	2	92.19%
src/realm/sync/instruction_applier.cpp	3	68.01%
src/realm/sync/instruction_replication.cpp	3	91.48%
src/realm/sync/noinst/protocol_codec.hpp	3	76.27%
src/realm/sync/noinst/server/server_history.cpp	5	62.59%
test/object-store/util/sync/baas_admin_api.cpp	5	84.57%
test/fuzz_group.cpp	6	51.2%

Totals
Change from base Build 2651:	0.01%
Covered Lines:	217476
Relevant Lines:	238639

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💛 - Coveralls

[jedelbo]

LGTM