Code compliance huge changes.

* Fixed issues
CliPrompter:
------------
- print list size
- long text line prompt is in CliPromptMessages
- multi chhoice prompt from map gets the currect choice

CommandParameters:
------------------
- Get boolean null pointer exception fixed
- Access to arguments keys.

CommandProvider:
----------------
- Check command name on addition

ConsoleApplication
------------------
- run status update when exiting start()

HelpExecutor
------------
- help content depends on whether the element is a subed command or not

ParametrizedCommand
-------------------
- Check parameter for modification when adding already existing
parameter
- Remove need status for boolean arguments
- Added invalid command exception
- Fail if not interactive and missing needed parameter
- Added getters

PrintUtils
----------
- Remove last empty line in wrap

SystemConsoleManager
--------------------
- Added charset for streams
- Removal of NULL characters from stream

* Added test elements. Use test console manager rather that system one.

Signed-off-by: Emmanuel Bigeon <emmanuel@bigeon.fr>

gclc.system/src/main/java/net/bigeon/gclc/system/ExecSystemCommand.java

@@ -79,7 +79,7 @@ public class ExecSystemCommand extends Command {
             }
         });
         th.start();
-        manager.setPrompt(new String());
+        manager.setPrompt("");
         final OutputStream os = proc.getOutputStream();
         try (BufferedWriter writer = new BufferedWriter(
                 new OutputStreamWriter(os))) {