[DataFactory] Support providing Salesforce passwords and security tokens as SecureStrings or as secrets in Azure Key Vault

[AutorestCI]

Generated from RestAPI PR: Azure/azure-rest-api-specs#1917

[codecov-io]

Codecov Report

Merging #1572 into master will decrease coverage by 0.02%.
The diff coverage is 78.26%.

@@            Coverage Diff             @@
##           master    #1572      +/-   ##
==========================================
- Coverage   53.84%   53.81%   -0.03%     
==========================================
  Files        3625     3626       +1     
  Lines       89945    89954       +9     
==========================================
- Hits        48427    48411      -16     
- Misses      41518    41543      +25

Impacted Files	Coverage Δ
...mgmt/datafactory/operations/datasets_operations.py	60% <ø> (ø)	⬆️
...zure/mgmt/datafactory/models/file_system_source.py	62.5% <ø> (ø)	⬆️
...actory/models/azure_sql_database_linked_service.py	55.55% <ø> (ø)	⬆️
...ure/mgmt/datafactory/models/dataset_compression.py	85.71% <ø> (ø)	⬆️
...ory/azure/mgmt/datafactory/models/wait_activity.py	62.5% <ø> (ø)	⬆️
...ctory/azure/mgmt/datafactory/models/text_format.py	100% <ø> (ø)	⬆️
...tafactory/models/amazon_redshift_linked_service.py	38.46% <ø> (ø)	⬆️
.../datafactory/models/pipeline_run_query_order_by.py	71.42% <ø> (ø)	⬆️
...mt/datafactory/models/azure_ml_web_service_file.py	71.42% <ø> (ø)	⬆️
...tory/azure/mgmt/datafactory/models/blob_trigger.py	50% <ø> (ø)	⬆️
... and 197 more

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[hvermis]

Waiting for the feature to be released

[hvermis]

This PR can be merged now, thanks!

[lmazuel]

@hvermis could you provide a small ChangeLog please? IS this breaking (i.e. what's the version story)
Thanks!

[hvermis]

These are changes that are going into this release:

• Added new connectors: AzureMySql, Salesforce and JSONFormat, Dynamics Sink
• Added support providing Salesforce passwords and security tokens as SecureString and AzureKeyVaultSecret for Dynamics/Salesforce
• Added cancel pipeline run api