[Module Proposal]: `avm-ptn-avd-lza-sessionhosts` (tf)

### Check for previous/existing GitHub issues/module proposals

- [x] I have checked for previous/existing GitHub issues/module proposals

### Check this module doesn't already exist in another project that is being evolved into AVM

- [X] I have checked for that this module doesn't already exist in CARML or TFVM

### Terraform or Bicep?

Terraform

### Module Classification?

Pattern Module

### Module Name

avm-ptn-avd-lza-sessionhosts

### Module Details

Creating an AVD Session Host with Azure Entra ID join module, that will deploy session hosts into a host pool. Jen Sheerin is working on the host pool module that will be used to add the session hosts too. Eventually will add this to the pattern module for AVD LZA.

code is currently in https://github.com/Azure/avdaccelerator/blob/main/workload/terraform/greenfield/AADscenario/host.tf

### Do you want to be the owner of this module?

Yes

### Module Owner's GitHub Username

cshea15, jensheerin