Conditionally generate ApiCOnfiguration, fix artifactId warning

Author: spacether

samples/client/3_0_3_unit_test/kotlin/.openapi-generator/FILES

@@ -179,7 +179,6 @@ src/main/kotlin/org/openapijsonschematools/client/components/schemas/Uniqueitems
 src/main/kotlin/org/openapijsonschematools/client/components/schemas/UriFormat.kt
 src/main/kotlin/org/openapijsonschematools/client/components/schemas/UriReferenceFormat.kt
 src/main/kotlin/org/openapijsonschematools/client/components/schemas/UriTemplateFormat.kt
-src/main/kotlin/org/openapijsonschematools/client/configurations/ApiConfiguration.kt
 src/main/kotlin/org/openapijsonschematools/client/configurations/JsonSchemaKeywordFlags.kt
 src/main/kotlin/org/openapijsonschematools/client/configurations/SchemaConfiguration.kt
 src/main/kotlin/org/openapijsonschematools/client/exceptions/ApiException.kt

samples/client/3_0_3_unit_test/kotlin/README.md

@@ -1,4 +1,4 @@
-# unit-test-api
+# 
 sample spec for testing openapi functionality, built from json schema tests for draft6
 
 This Kotlin package is automatically generated by the [OpenAPI JSON Schema Generator](https://github.com/openapi-json-schema-tools/openapi-json-schema-generator) project:
@@ -27,12 +27,12 @@ Add this dependency to your project's build file:
 
 ```
 repositories {
-    mavenCentral()     // Needed if the 'unit-test-api' jar has been published to maven centra
-    mavenLocal()       // Needed if the 'unit-test-api' jar has been published to the local maven repo
+    mavenCentral()     // Needed if the '' jar has been published to maven centra
+    mavenLocal()       // Needed if the '' jar has been published to the local maven repo
 }
 
 dependencies {
-     implementation "org.openapijsonschematools:unit-test-api:0.0.1"
+     implementation "org.openapijsonschematools::0.0.1"
 }
 ```
 

samples/client/3_0_3_unit_test/kotlin/settings.gradle.kts

@@ -1,2 +1,2 @@
-rootProject.name = "unit-test-api"
+rootProject.name = ""