List all derived types in discriminator mapping and append @odata.type property to all derived types

[irvinesunday]

Fixes #248
Fixes #240

This PR:

• Finds all derived types for a given type and adds this to the discriminator mapping.
• Appends the @odata.type property to the derived types, and marks this as a required property.
• Updates tests to validate the above.
• Bumps library package to v1.0.11 and add release notes.

The generated OpenAPI document with the above changes looks like below for:

microsoft.graph.fileAttachment

microsoft.graph.mobileApp

microsoft.graph.mobileApp:
      allOf:
        - $ref: '#/components/schemas/microsoft.graph.entity'
        - title: mobileApp
          required:
            - '@odata.type'
          type: object
          properties:
            ..........
           
            '@odata.type':
              type: string
              default: '#microsoft.graph.mobileApp'
          description: An abstract class containing the base properties for Intune mobile apps.
          discriminator:
            propertyName: '@odata.type'
            mapping:
              '#microsoft.graph.mobileLobApp': '#/components/schemas/microsoft.graph.mobileLobApp'
              '#microsoft.graph.androidLobApp': '#/components/schemas/microsoft.graph.androidLobApp'
              '#microsoft.graph.iosLobApp': '#/components/schemas/microsoft.graph.iosLobApp'
              '#microsoft.graph.win32LobApp': '#/components/schemas/microsoft.graph.win32LobApp'
              '#microsoft.graph.windowsMobileMSI': '#/components/schemas/microsoft.graph.windowsMobileMSI'
              '#microsoft.graph.windowsUniversalAppX': '#/components/schemas/microsoft.graph.windowsUniversalAppX'
              '#microsoft.graph.androidStoreApp': '#/components/schemas/microsoft.graph.androidStoreApp'
              '#microsoft.graph.iosStoreApp': '#/components/schemas/microsoft.graph.iosStoreApp'
              '#microsoft.graph.iosVppApp': '#/components/schemas/microsoft.graph.iosVppApp'
              '#microsoft.graph.macOSOfficeSuiteApp': '#/components/schemas/microsoft.graph.macOSOfficeSuiteApp'
              '#microsoft.graph.managedApp': '#/components/schemas/microsoft.graph.managedApp'
              '#microsoft.graph.managedMobileLobApp': '#/components/schemas/microsoft.graph.managedMobileLobApp'
              '#microsoft.graph.managedAndroidLobApp': '#/components/schemas/microsoft.graph.managedAndroidLobApp'
              '#microsoft.graph.managedIOSLobApp': '#/components/schemas/microsoft.graph.managedIOSLobApp'
              '#microsoft.graph.managedAndroidStoreApp': '#/components/schemas/microsoft.graph.managedAndroidStoreApp'
              '#microsoft.graph.managedIOSStoreApp': '#/components/schemas/microsoft.graph.managedIOSStoreApp'
              '#microsoft.graph.microsoftStoreForBusinessApp': '#/components/schemas/microsoft.graph.microsoftStoreForBusinessApp'
              '#microsoft.graph.webApp': '#/components/schemas/microsoft.graph.webApp'

and...

microsoft.graph.mobileLobApp

microsoft.graph.mobileLobApp:
      allOf:
        - $ref: '#/components/schemas/microsoft.graph.mobileApp'
        - title: mobileLobApp
          required:
            - '@odata.type'
          type: object
          properties:
            ..................

            '@odata.type':
              type: string
              default: '#microsoft.graph.mobileLobApp'
          description: An abstract base class containing properties for all mobile line of business apps.
          discriminator:
            propertyName: '@odata.type'
            mapping:
              '#microsoft.graph.androidLobApp': '#/components/schemas/microsoft.graph.androidLobApp'
              '#microsoft.graph.iosLobApp': '#/components/schemas/microsoft.graph.iosLobApp'
              '#microsoft.graph.win32LobApp': '#/components/schemas/microsoft.graph.win32LobApp'
              '#microsoft.graph.windowsMobileMSI': '#/components/schemas/microsoft.graph.windowsMobileMSI'
              '#microsoft.graph.windowsUniversalAppX': '#/components/schemas/microsoft.graph.windowsUniversalAppX'

[andrueastman]

Thanks for fixing this.