Generate kotlin 'client-string' sample (#369)

* Move pom to 'samples.ci'

* Regenerate 'samples/client/petstore/kotlin-string'

samples/client/petstore/kotlin-string/.openapi-generator-ignore

@@ -1,11 +1,11 @@
-# Swagger Codegen Ignore
-# Generated by swagger-codegen https://github.com/swagger-api/swagger-codegen
+# OpenAPI Generator Ignore
+# Generated by openapi-generator https://github.com/openapitools/openapi-generator
 
 # Use this file to prevent files from being overwritten by the generator.
 # The patterns follow closely to .gitignore or .dockerignore.
 
 # As an example, the C# client generator defines ApiClient.cs.
-# You can make changes and tell Swagger Codgen to ignore just this file by uncommenting the following line:
+# You can make changes and tell OpenAPI Generator to ignore just this file by uncommenting the following line:
 #ApiClient.cs
 
 # You can match any string of characters against a directory, file or extension with a single asterisk (*):

samples/client/petstore/kotlin-string/.openapi-generator/VERSION

@@ -1 +1 @@
-2.4.0-SNAPSHOT
+3.0.0-SNAPSHOT

samples/client/petstore/kotlin-string/README.md

@@ -1,4 +1,4 @@
-# io.swagger.client - Kotlin client library for Swagger Petstore
+# io.swagger.client - Kotlin client library for OpenAPI Petstore
 
 ## Requires
 
@@ -25,7 +25,7 @@ This runs all tests and packages the library.
 
 * Supports JSON inputs/outputs, File inputs, and Form inputs.
 * Supports collection formats for query parameters: csv, tsv, ssv, pipes.
-* Some Kotlin and Java types are fully qualified to avoid conflicts with types defined in Swagger definitions.
+* Some Kotlin and Java types are fully qualified to avoid conflicts with types defined in OpenAPI definitions.
 * Implementation of ApiClient is intended to reduce method counts, specifically to benefit Android targets.
 
 <a name="documentation-for-api-endpoints"></a>

samples/client/petstore/kotlin-string/build.gradle

@@ -1,4 +1,4 @@
-group 'io.swagger'
+group 'org.openapitools'
 version '1.0.0'
 
 task wrapper(type: Wrapper) {

samples/client/petstore/kotlin-string/build/kotlin-build/caches/version.txt

@@ -1 +0,0 @@
-11001