Watchmaker

**Summary**:

* Updates Watchmaker file permissions and makes them more restrictive
* Adds new SaltWorker optional argument `--salt-content-path` that allows specifying glob pattern for
salt files located within salt archive file

**Summary**:

* vault-auth-formula
- Rename state to vault-auth
- Add url keyword argument to read_secret execution module

**Summary**:

* Removes deprecated `emet-formula` and `dotnet4-formula` submodules
* Adds new `vault-auth-formula` submodule
* ash-windows-formula
- Replaces usage of Apply_LGPO_Delta.exe with native python and salt functionality
- Addresses additional findings for domain-joined systems
- Removes deprecated baselines from Windows Server 2008 R2, 8.1, and IE 8, 9, and 10

**Summary**:

* join-domain-formula
- Allow use of password with Linux join domain capability

**Summary**:

* ash-linux-formula
- Updates custom STIGbyID baseline to address several scan findings.
* Add content for RHEL-07-040530/SV-86899

**Summary**:

* dotnet4-formula
- Fix compatibility with Windows Server 2019 by using 2019 hotfixes
* ash-linux-formula
- Improvements for STIGv2r6
- Fix collisions caused by cat2 IDs and DISA numbering change
- Use Salt Stack version 2019.2-2