Fix GMR code generation

[tjpeel-ee]

This PR presents no operational change, it is purely fixing the code generation in order to get us to a stable position.

Thanks to @t11omas for your time and input in addressing some of the issues.

We accept the invalid formatting as that is what the code generation gives us.

Missing string[] properties are now included, which were previously missing.

The CLI tool (for GMR generation only) now runs from the repository root and does not have fixed paths.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

Package	Line Rate	Branch Rate	Health
Btms.Consumers	85%	77%	✔
Btms.Azure	43%	100%	❌
Btms.Business	82%	74%	✔
Btms.Types.Alvs.Mapping.V1.Tests	0%	0%	❌
Btms.Types.Ipaffs	95%	62%	✔
Btms.Types.Gvms	61%	100%	➖
Btms.Types.Alvs.Mapping	81%	0%	✔
Btms.Backend	62%	39%	➖
Btms.Types.Gvms.Mapping	35%	22%	❌
Btms.Model	91%	94%	✔
Btms.Common	74%	56%	➖
TestGenerator.IntegrationTesting.Backend	83%	71%	✔
TestDataGenerator	86%	80%	✔
Btms.Types.Ipaffs.Mapping	77%	50%	➖
Btms.BlobService	39%	27%	❌
Btms.Metrics	84%	0%	✔
Btms.Backend.Data	64%	58%	➖
Btms.Analytics	74%	73%	➖
Btms.Types.Alvs	85%	67%	✔
Btms.SensitiveData	79%	83%	➖
Btms.SyncJob	63%	45%	➖
Btms.Emf	11%	0%	❌
Summary	78% (9992 / 12763)	62% (1005 / 1619)	➖