jw.build.cmds: Move build.cmds -> cmds.projects

Reorganize the Python module structure. Placing the command classes
under jw.cmds.projects instead of jw.build.cmds will allow to add a
nested command structure, with the current commands, being mostly
related to building software, found below a "projects" toplevel
command.

Other conceivable commands could be "package" for packaging, or
"distro" for commands wrapping the distribution's package manager.

Signed-off-by: Jan Lindemann <jan@janware.com>

src/python/jw/pkg/cmds/CmdProjects.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+
+import sys, inspect, re
+from argparse import ArgumentParser
+
+from .Cmd import Cmd as CmdBase
+
+class CmdProjects(CmdBase): # export
+
+    def __init__(self) -> None:
+        super().__init__('projects', help='Project metadata evaluation for building packages')
+        self._add_subcommands()
+
+    def add_arguments(self, p: ArgumentParser) -> None:
+        super().add_arguments(p)
+
+    def _run(self, args):
+        breakpoint()
+        raise Exception("Running with args", args)