Clean ApiException.cs

[karb0f0s]

We should clean this commented out part in
public static ApiRequestException FromApiResponse(ApiResponse apiResponse)
some exceptions already implemented, and there is no need to keep dead code for them, some not implemented yet, like case "bot was blocked by the user" but declared, which is misleading

[karb0f0s]

Should BadRequestException and ForbiddenException abstract classes be renamed to BadRequestExceptionBase and ForbiddenExceptionBase?
Could then BadRequestException and ForbiddenException classes be used to throw general 400 and 403 errors?

[tuscen]

@karb0f0s Agree, it makes sense to throw general BadRequestException and ForbiddenException when there is no particular exception type.

[karb0f0s]

Closed due to inactivity