Issues with computeclass created with resource limit/request.

[sangee2004]

acorn version - v0.10.0-rc2+e32a2709

Steps to reproduce the problem:

1. Try to create a ClusterComputeClassInstance with resource limit/request set to integer values.

   kind: ClusterComputeClassInstance
   apiVersion: internal.admin.acorn.io/v1
   default: true
   metadata:
   name: cc1
   description: Large compute for linux on arm64
   cpuScaler: 0.75
   supportedRegions:
   - local
   memory:
   default: 20M
   min: 10M
   max: 100M
   runtimeClassName: mytestclass
   resources:
   limits:
   gpu-vendor.example/example-gpu: 2
   test2: 2
   requests:
   gpu-vendor.example/example-gpu: 1
   test2: 1

2. This fails with following errors:

   kubectl apply -f ccnew.yaml           
   The ClusterComputeClassInstance "cc1" is invalid: 
   * resources.limits.gpu-vendor.example/example-gpu: Invalid value: "integer": resources.limits.gpu-vendor.example/example-gpu in body must be of type string: "integer"
   * resources.limits.test2: Invalid value: "integer": resources.limits.test2 in body must be of type string: "integer"
   * resources.requests.gpu-vendor.example/example-gpu: Invalid value: "integer": resources.requests.gpu-vendor.example/example-gpu in body must be of type string: "integer"
   * resources.requests.test2: Invalid value: "integer": resources.requests.test2 in body must be of type string: "integer"

3. Try to create a ClusterComputeClassInstance with resource limit/request set to string. This succeeds. But app deployment using this computeclass fails with following error

   ✗  ERROR:  App.api.acorn.io "mytest" is invalid: spec.image: Invalid value: "2601fcb549cec80e17651e1eb9163a7dead87dd7ec344e9e569e2a95e6410763": error listing compute classes: quantities must match the regular expression '^([+-]?[0-9.]+)([eEinumkKMGTP]*[-+]?[0-9]*)$'

   Same error is also seen when listing computeclass

   acorn offerings computeclass 
   ✗  ERROR:  quantities must match the regular expression '^([+-]?[0-9.]+)([eEinumkKMGTP]*[-+]?[0-9]*)$'

[sangee2004]

Tested with acorn version - v0.10.0-rc2-9-g43dbcbf4+43dbcbf4

1. Able to create a computeclass with resources field containing requests and limits using following yaml :

   kind: ClusterComputeClass
   apiVersion: admin.acorn.io/v1
   default: false
   metadata:
   name: cc-res
   description: Large compute for linux on arm64
   cpuScaler: 0.75
   supportedRegions:
   - local
   memory:
   default: 20M
   min: 10M
   max: 100M
   resources:
   limits:
   gpu-vendor.example/example-gpu: 2
   requests:
   gpu-vendor.example/example-gpu: 2

2. Able to list this computeclass using acorn offerings computeclass and deploy apps using this computeclass.