Added documentation for region.py and profile.py (#268)

## 📝 Description

Added documentation for `objects/region.py` and `objects/profile.py`

## ✔️ How to Test

`pytest test`

Tickets: TPT-1932 and TPT-1933

Author: ezilber-akamai-zz

linode_api4/objects/profile.py

@@ -3,6 +3,12 @@
 
 
 class AuthorizedApp(Base):
+    """
+    An application with authorized access to an account.
+
+    API Documentation: https://www.linode.com/docs/api/profile/#authorized-app-view
+    """
+
     api_endpoint = "/profile/apps/{id}"
 
     properties = {
@@ -17,6 +23,12 @@ class AuthorizedApp(Base):
 
 
 class PersonalAccessToken(Base):
+    """
+    A Person Access Token associated with a Profile.
+
+    API Documentation: https://www.linode.com/docs/api/profile/#personal-access-token-view
+    """
+
     api_endpoint = "/profile/tokens/{id}"
 
     properties = {
@@ -30,6 +42,10 @@ class PersonalAccessToken(Base):
 
 
 class WhitelistEntry(Base):
+    """
+    DEPRECATED: Limited to customers with a feature tag
+    """
+
     api_endpoint = "/profile/whitelist/{id}"
 
     properties = {
@@ -41,6 +57,12 @@ class WhitelistEntry(Base):
 
 
 class Profile(Base):
+    """
+    A Profile containing information about the current User.
+
+    API Documentation: https://www.linode.com/docs/api/profile/#profile-view
+    """
+
     api_endpoint = "/profile"
     id_attribute = "username"
 
@@ -65,6 +87,11 @@ def enable_tfa(self):
         """
         Enables TFA for the token's user.  This requies a follow-up request
         to confirm TFA.  Returns the TFA secret that needs to be confirmed.
+
+        API Documentation: https://www.linode.com/docs/api/profile/#two-factor-secret-create
+
+        :returns: The TFA secret
+        :rtype: str
         """
         result = self._client.post("/profile/tfa-enable")
 
@@ -73,6 +100,15 @@ def enable_tfa(self):
     def confirm_tfa(self, code):
         """
         Confirms TFA for an account.  Needs a TFA code generated by enable_tfa
+
+        API Documentation: https://www.linode.com/docs/api/profile/#two-factor-authentication-confirmenable
+
+        :param code: The Two Factor code you generated with your Two Factor secret.
+                     These codes are time-based, so be sure it is current.
+        :type code: str
+
+        :returns: Returns true if operation was successful
+        :rtype: bool
         """
         self._client.post(
             "/profile/tfa-enable-confirm", data={"tfa_code": code}
@@ -83,6 +119,11 @@ def confirm_tfa(self, code):
     def disable_tfa(self):
         """
         Turns off TFA for this user's account.
+
+        API Documentation: https://www.linode.com/docs/api/profile/#two-factor-authentication-disable
+
+        :returns: Returns true if operation was successful
+        :rtype: bool
         """
         self._client.post("/profile/tfa-disable")
 
@@ -92,6 +133,11 @@ def disable_tfa(self):
     def grants(self):
         """
         Returns grants for the current user
+
+        API Documentation: https://www.linode.com/docs/api/profile/#grants-list
+
+        :returns: The grants for the current user
+        :rtype: UserGrants
         """
         from linode_api4.objects.account import (  # pylint: disable-all
             UserGrants,
@@ -112,12 +158,16 @@ def grants(self):
     def whitelist(self):
         """
         Returns the user's whitelist entries, if whitelist is enabled
+
+        DEPRECATED: Limited to customers with a feature tag
         """
         return self._client._get_and_filter(WhitelistEntry)
 
     def add_whitelist_entry(self, address, netmask, note=None):
         """
         Adds a new entry to this user's IP whitelist, if enabled
+
+        DEPRECATED: Limited to customers with a feature tag
         """
         result = self._client.post(
             "{}/whitelist".format(Profile.api_endpoint),
@@ -139,6 +189,8 @@ def add_whitelist_entry(self, address, netmask, note=None):
 class SSHKey(Base):
     """
     An SSH Public Key uploaded to your profile for use in Linode Instance deployments.
+
+    API Documentation: https://www.linode.com/docs/api/profile/#ssh-key-view
     """
 
     api_endpoint = "/profile/sshkeys/{id}"
@@ -152,6 +204,12 @@ class SSHKey(Base):
 
 
 class TrustedDevice(Base):
+    """
+    A Trusted Device for a User.
+
+    API Documentation: https://www.linode.com/docs/api/profile/#trusted-device-view
+    """
+
     api_endpoint = "/profile/devices/{id}"
 
     properties = {
@@ -165,6 +223,12 @@ class TrustedDevice(Base):
 
 
 class ProfileLogin(Base):
+    """
+    A Login object displaying information about a successful account login from this user.
+
+    API Documentation: https://www.linode.com/docs/api/profile/#login-view
+    """
+
     api_endpoint = "profile/logins/{id}"
 
     properties = {

linode_api4/objects/region.py

@@ -2,6 +2,12 @@
 
 
 class Region(Base):
+    """
+    A Region. Regions correspond to individual data centers, each located in a different geographical area.
+
+    API Documentation: https://www.linode.com/docs/api/regions/#region-view
+    """
+
     api_endpoint = "/regions/{id}"
     properties = {
         "id": Property(identifier=True),