Add array size validation to OpenAPI templates

[davidjwbbc]

Introduction

Array size limits can be specified for an API in OpenAPI 3.0 using the optional minItems and maxItems qualifiers when specifying arrays. The 3GPP OpenAPI YAML in the 5G_APIs repository uses both minItems and maxItems, although the 5GMS specific parts only use minItems. At present, the validation performed in the 5GMS AF by the OpenAPI C templates does not validation the size of arrays.

Description

1. Update the commit for rt-common-shared so that it includes the OpenAPI C templates to provide extra validation for array sizes (Add array size validation to the openapi-generator C templates rt-common-shared#40).
2. Confirm validation occurs in the 5GMS AF for API object instances where array limits are set in 5GMS OpenAPI interfaces.