Add dotnet new template for project scaffolding

[Kristoffer88]

Summary

Adds a dotnet new xrmbedrock template that automates most of the project setup process.

What the template handles automatically

• Project renaming: XrmBedrock → {name} in all files and filenames (sourceName)
• Lowercase renaming: xrmbedrock → {namelower} for SNK references (nameLower generator)
• Prefixed folder/refs: ctx_XrmBedrock → {prefix}_{name} (prefixedName join generator)
• Environment URLs: All four Dataverse URLs replaced via --dev-url, --test-url, etc.
• Assembly metadata: MGS / DEMO replaced via --org-name / --repo-name
• Resource group: resourcegroupname replaced via --rg-name
• Cert password: someRandomPassword replaced via --cert-password
• Username: Written to src/Tools/Daxif/username.txt via --username
• SNK key: Generated cross-platform in post-action script (CSP blob format)
• Post-setup: git init, copy initial files, dotnet tool restore, npm install

What still requires manual replacement

These values are too short for safe global string replacement (the template engine's replaces does literal substring matching):

Value	Location	Why unsafe
ctx	_Config.fsx publisher prefix	Appears inside entity names like ctx_invoice, ctx_subscription
demo	main.bicep solutionId	Appears in CustomAPI identifier and pipeline resource names
mgs	main.bicep companyId	Appears in Dataverse env var schema name mgs_AzureStorageAccountUrl

The --publisher-prefix, --solution-id, and --company-id parameters are collected but not auto-replaced. Users must find-and-replace these manually after project creation.

Compatibility fixes

• #pragma warning disable IDE0005 around #if NET462 in AzureService.cs — prevents build error when template engine evaluates the conditional (NET462 symbol set to true as constant)
• #pragma warning disable SA1210 in TestBase.cs — using order changes when XrmBedrock is renamed to a name alphabetically before WireMock

Files added/changed

File	Change
.template.config/template.json	New — template configuration
.template.config/dotnetcli.host.json	New — CLI parameter aliases
Setup/postTemplateSetup.ps1	New — post-action script (SNK gen, file copy, tool restore, npm)
src/Tools/Daxif/username.txt	New — placeholder for Dataverse username
README.md	Added quick start section
AzureService.cs	IDE0005 pragma for template compatibility
TestBase.cs	SA1210 pragma for template compatibility

Test plan

• dotnet new install .
• dotnet new xrmbedrock -n TestProject --publisher-prefix tst --org-name TestOrg --repo-name TestRepo --dev-url https://test.crm4.dynamics.com -o ~/repos/TestProject
• Answer Y to post-action prompt
• Verify testproject.snk exists (596 bytes)
• Verify src/Tools/Daxif/username.txt has correct value
• Verify tst_TestProject folder created under WebResources
• dotnet build --configuration Release — 0 errors, 0 warnings
• Manually replace ctx, demo, mgs in target files
• dotnet new uninstall .