Move code generation code into non-standard directory

IDEA tries to be helpful when opening a project and assumes that
`src/main/groovy` contains production code. While conventionally true,
this isn't the case for this project.

Avoiding this assumption makes opening the project a bit easier.

Fixes: #61

Author: mpkorstanje

.gitignore

@@ -1,11 +1,10 @@
-.idea
+.idea
 *.iml
-
-target
-
 
-examples/pom.xml.releaseBackup
-groovy/pom.xml.releaseBackup
+target
+
+dependency-reduced-pom.xml
 pom.xml.releaseBackup
 release.properties
 
+

README.md

@@ -25,3 +25,12 @@ See: https://cucumber.io/support
 ## They are using it
 
 You are using Cucumber Groovy? We would love to know about you! Please open a PR to add your project or company to the list below.
+
+
+## Contributing
+
+To build the project run:
+
+```shell
+mvn verify
+```

groovy/pom.xml

@@ -163,7 +163,7 @@
                         <configuration>
                             <target>
                                 <taskdef name="groovy" classname="org.codehaus.groovy.ant.Groovy" classpathref="maven.plugin.classpath" />
-                                <groovy src="src/main/groovy/generate-keywords.groovy" />
+                                <groovy src="src/main/codegen/generate-keywords.groovy" />
                             </target>
                         </configuration>
                     </execution>

groovy/src/main/groovy/I18n.groovy.gsp renamed to groovy/src/main/codegen/I18n.groovy.gsp

@@ -2,7 +2,7 @@ import groovy.text.SimpleTemplateEngine
 import io.cucumber.gherkin.GherkinDialects
 
 def engine = new SimpleTemplateEngine()
-def templateSource = new File(project.baseDir, "${File.separator}src${File.separator}main${File.separator}groovy${File.separator}I18n.groovy.gsp").getText()
+def templateSource = new File(project.baseDir, "${File.separator}src${File.separator}main${File.separator}codegen${File.separator}I18n.groovy.gsp").getText()
 
 def unsupported = ["EM"] // The generated files for Emoij do not compile.