support char and character types in configuration.

Actually when we use a char or a character type in configuration we get a number widget. The idea is to use text (string) widget with a min and max value which is more user friendly.

Code to change :
https://github.com/Talend/component-runtime/blob/368b07a3f3be4b9c48d83213974dd34ca1d375c2/component-runtime-manager/src/main/java/org/talend/sdk/component/runtime/manager/reflect/ParameterModelService.java#L350