Validation added for Target resource type for include and revinclude search options

[rajithaalurims]

Description

Invalid Target resource type was not handled when search with "include" and "revinclude" options.

Related issues

76141

Testing

Test 1:
Test URL : Patient/?revinclude=Observation:subject:NotAResourceType
Returned below error:
"issue": [
{
"severity": "error",
"code": "not-supported",
"diagnostics": "Resource type 'NotAResourceType' is not supported.'."
}
]

Test 2:
Test URL : Patient/?include=Observation:subject:NotAResourceType
Returned below error:
"issue": [
{
"severity": "error",
"code": "not-supported",
"diagnostics": "Resource type 'NotAResourceType' is not supported.'."
}
]

FHIR Team Checklist

• Update the title of the PR to be succinct and less than 50 characters
• Add a milestone to the PR for the sprint that it is merged (i.e. add S47)
• Tag the PR with the type of update: Bug, Dependencies, Enhancement, or New-Feature
• Tag the PR with Azure API for FHIR if this will release to the Azure API for FHIR managed service (CosmosDB or common code related to service)
• Tag the PR with Azure Healthcare APIs if this will release to the Azure Healthcare APIs managed service (Sql server or common code related to service)
• CI is green before merge
• Review squash-merge requirements

Semver Change (docs)

Patch|Skip|Feature|Breaking (reason)