Add run/call static methods that accept an IFactory

[remkop]

To facilitate Micronaut integration (#399), add the following methods:

static <C extends Callable<T>, T> T call(Class<C>, IFactory, String...) {}
static <C extends Callable<T>, T> T call(Class<C>, IFactory, PrintStream, String...) {}
static <C extends Callable<T>, T> T call(Class<C>, IFactory, PrintStream, Help.Ansi, String...) {}
static <C extends Callable<T>, T> T call(Class<C>, IFactory, PrintStream, PrintStream, Help.Ansi, String...) {}
static <C extends Runnable> void run(Class<C>, IFactory, String...) {}
static <C extends Runnable> void run(Class<C>, IFactory, PrintStream, String...) {}
static <C extends Runnable> void run(Class<C>, IFactory, PrintStream, Help.Ansi, String...) {}
static <C extends Runnable> void run(Class<C>, IFactory, PrintStream, PrintStream, Help.Ansi, String...) {}

Also, instead of unconditionally creating a proxy for interfaces with annotated methods (in CommandLine.Model.CommandReflection.extractCommandSpec), first try to look up the interface in the factory, and create a proxy if the lookup fails.