* Add option to skip Maven plugin execution
The execution is skipped if either the codegen.skip property or the <skip>
configuration parameter is set. This is consistent with how many other Maven
plugins, such as maven-exec-plugin and maven-clean-plugin, handle this.
* Add documentation for Maven `skip` property
* [maven-plugin] allow for ignore file override
The .swagger-codegen-ignore file is beneficial for existing source
directories to provide pattern-based exclusion rules for existing source
to be ignored by swagger codegen. Until now, there's been no utility
other than skipOverwrite to modify the initial generation of code
(either via CLI or maven plugin).
This commit adds support for an ignoreFileOverride option to both the
CLI and the maven plugin.
Example CLI usage:
```
java -jar swagger-codegen.jar generate \
-i swagger.json -l csharp \
-o target --ignore-file-override /path/to/ignore-file
```
Example Maven Plugin configuration:
```
<build>
<plugins>
<plugin>
<groupId>io.swagger</groupId>
<artifactId>swagger-codegen-maven-plugin</artifactId>
<version>2.2.2-SNAPSHOT</version>
<executions>
<execution>
<goals>
<goal>generate</goal>
</goals>
<configuration>
<inputSpec>${project.basedir}/src/main/resources/swagger.yaml</inputSpec>
<language>csharp</language>
<invokerPackage>io.swagger</invokerPackage>
<modelPackage>io.swagger.models</modelPackage>
<apiPackage>io.swagger.apis</apiPackage>
<ignoreFileOverride>/Users/jim/projects/swagger-codegen/.sample-ignore</ignoreFileOverride>
<configOptions>
</configOptions>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
```
* [maven-plugin] update new javadocs
* fix bad merge due to missing }
* fixes#4432 Adding support for the modifier within the Jaxb XMLElement annotation. Updated README with JaxbAnnotations configuration option.
* #4432 Running the Petstore files