* Added few new functions:

'Get-FabricSQLDatabase',
'Remove-FabricSQLDatabase',
'Get-FabricCapacitySkus',
'Confirm-FabricAuthToken'
* Unified objects in module scope (FabricSession, AzureSession)
* Module scope holds all api urls, header params for requests
* Unified function to authenticate to Fabric API with bearer token
* Auto-refresh token when expires
* Removed $authToken as input param in several functions
* Removed usage of $env:azToken from several functions
* Get-FabricItem accepts Workspaces as input-pipeline
* Minor cosmetic changes

Documentation generated & helper folder with scripts