API to auto-enable extensions after provisioning a VM

**Is your feature request related to a problem? Please describe.**

I'm not sure why but when I create a VM from my ARM template the OmsAgentForLinux (and the AzurePolicyforWindows on windows VM's) come up disabled and then I have to go to the portal to enable it manually clicking this:


and for Windows VM's


**Describe the solution you'd like**

Is there an python API I can use to do this?

**Describe alternatives you've considered**

Manual is tedius.

**Additional context**

This is my Linux OS configuration:

```json
"linuxConfiguration": {
"patchSettings": {
"patchMode": "ImageDefault",
"assessmentMode": "AutomaticByPlatform"
},
"disablePasswordAuthentication": false,
"provisionVMAgent": true,
"enableVMAgentPlatformUpdates": true
}
```
and windows:

```json
"windowsConfiguration": {
"enableAutomaticUpdates": true,
"provisionVmAgent": true,
"patchSettings": {
"enableHotpatching": "[variables('enableHotpatching')]",
"patchMode": "[variables('patchMode')]"
},
"enableVMAgentPlatformUpdates": true,
}
```