Adding msi and rbac template

[Saglodha]

Adding bicep template to create user MSI and associate RBAC role to MSI

[alex-frankel]

small tweak

[codecov-io]

Codecov Report

Merging #1260 (0bd55b2) into main (137c908) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1260      +/-   ##
==========================================
- Coverage   94.49%   94.48%   -0.01%     
==========================================
  Files         336      338       +2     
  Lines       16835    16990     +155     
  Branches       14       14              
==========================================
+ Hits        15908    16053     +145     
- Misses        927      937      +10     

Flag	Coverage Δ
dotnet	95.02% <ø> (-0.02%)	⬇️
typescript	27.20% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/Bicep.Core/Emit/ExpressionConverter.cs	97.10% <0.00%> (ø)
src/Bicep.Core/Diagnostics/DiagnosticBuilder.cs	100.00% <0.00%> (ø)
src/Bicep.Core/Emit/ResourceDependencyVisitor.cs	94.44% <0.00%> (ø)
...Bicep.Core/Syntax/ParenthesizedExpressionSyntax.cs	100.00% <0.00%> (ø)
...Bicep.Core/TypeSystem/DeployTimeConstantVisitor.cs	95.09% <0.00%> (ø)
...re/TypeSystem/DeployTimeConstantVariableVisitor.cs	83.33% <0.00%> (ø)
src/Bicep.Core/Parsing/Parser.cs	95.22% <0.00%> (+0.01%)	⬆️
....LangServer/Completions/BicepCompletionProvider.cs	97.35% <0.00%> (+0.33%)	⬆️
src/Bicep.Core/Emit/EmitLimitationCalculator.cs	82.50% <0.00%> (+0.44%)	⬆️
src/Bicep.Core/Parsing/TextSpan.cs	95.58% <0.00%> (+1.47%)	⬆️

[Saglodha]

@alex-frankel , Thanks for the suggestions. I have updated the templates.