Integrate the MS Azure "Cost" API into Ercole

[cbiglioli]

Integrate the "Cost" API in Ercole to have Microsoft Azure cost management.

ATTENTION: we need the name of the API to use, after that, information about both input parameters the API needs and how the API will be used.

[cbiglioli]

We did some testing by looking at the following APIs:

• https://learn.microsoft.com/en-us/rest/api/consumption/charges/list?source=recommendations&tabs=Go
• https://learn.microsoft.com/en-us/rest/api/consumption/aggregated-cost/get-by-management-group?tabs=Go
• https://learn.microsoft.com/en-us/rest/api/consumption/budgets/list?tabs=Go
• https://learn.microsoft.com/en-us/rest/api/consumption/price-sheet/get?tabs=Go

We also looked at the following documentation: https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/costmanagement/armcostmanagement#section-readme

To use certain APIs it seems you need the Billing Account Id.