[spring-cloud] Add validator for app deploy and app deployment create

[yuwzho]

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Description

This PR add validator on given arguments for az spring-cloud app deploy and az spring-cloud app deployment create.

• --source-path, --artifact-path and --container-image must be provided one and only one.
• --cpu and --memory must be provided in accepted type, here put the normalize to the parameter parsing

This PR doesn't prompt version on purpose, will do it together with other PRs

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[yonzhan]

spring-cloud

[jsntcy]

/check-enforcer evaluate

[jsntcy]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[yuwzho]

#4294