Create a job schedule using vertex scheduler - DO NOT MERGE, FOR REVIEW ONLY.

[shreyas-ls]

Modified the Create Schedule form to include Vertex Scheduler as an option while creating a new job schedule. Modifications include:

1. Added radio buttons for Scheduler selection - vertex and composer
2. For vertex scheduler added below fields:
   1. Region - automatically populated from settings however user can select a different region.
   2. Machine Type - Integrated with ui-config API.
   3. Kernel - hard-coded values for kernel types.
   4. Cloud storage bucket - list of available buckets in the selected project. Users can also create and select a new cloud storage
      bucket.
   5. Disk Type - hard-coded values for available disk types.
   6. Disk size - accepts numeric and non-zero values.
   7. Service account - defaulted to "compute engine service account". Users can change it to different service account available in the project.
   8. Primary and Sub network: list of available primary and sub networks available in the project.
   9. Shared network: list of networks available from the host project.
   10. Schedule:
       a. Run now: to run the job immediately.
       b. Run on Schedule: To run the job as per the user selected schedule.
   11. Added the SVG icons.
   12. Created the separate file for icons and importing it in the other components.

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