Cdms-183

[t11omas]

1. Updated KeyDataPairsToDictionaryStringObjectJsonConverter to supprrt when data is null, and added some tests

2. Updated audit log to use a double when ValueKind is a number to support real numbers, and added some tests

3. Updated document to documents

4. Fixed an issue with concurrency within Linking due to the etag being empty

[github-actions]

Package	Line Rate	Branch Rate	Health
Btms.Business	81%	68%	✔
Btms.Types.Gvms.Mapping	38%	26%	❌
Btms.Metrics	82%	0%	✔
Btms.Types.Gvms	67%	100%	➖
Btms.Types.Alvs.Mapping	74%	0%	➖
Btms.Types.Ipaffs.Mapping	73%	40%	➖
TestDataGenerator	54%	47%	❌
Btms.Azure	70%	75%	➖
Btms.BlobService	31%	17%	❌
Btms.Analytics	80%	65%	✔
Btms.Backend.Data	65%	62%	➖
Btms.Consumers	70%	38%	➖
Btms.Common	79%	17%	➖
Btms.Model	90%	92%	✔
Btms.SyncJob	81%	71%	✔
Btms.SensitiveData	80%	81%	✔
Btms.Types.Ipaffs	94%	56%	✔
Btms.Types.Alvs.Mapping.V1.Tests	0%	0%	❌
Btms.Types.Alvs	83%	67%	✔
Btms.Emf	11%	6%	❌
Btms.Backend	57%	57%	❌
Summary	73% (5348 / 7360)	47% (641 / 1366)	➖