Add cli convert subcommand, from raw KLE to JSON (#6898)

* Add initial pass at KLE convert

* Add cli log on convert

* Move kle2xy, add absolute filepath arg support

* Add overwrite flag, and context sensitive conversion

* Update docs/cli.md

* Fix converter.py typo

* Add convert unit test

* Rename to kle2qmk

* Rename subcommand

* Rename subcommand to kle2json

* Change tests to cover rename

* Rename in __init__.py

* Update CLI docs with new subcommand name

* Fix from suggestions in PR #6898

* Help with cases of case sensitivity

* Update cli.md

* Use angle brackets to indicate required option

* Make the output text more accurate

lib/python/qmk/converter.py

@@ -0,0 +1,33 @@
+"""Functions to convert to and from QMK formats
+"""
+from collections import OrderedDict
+
+
+def kle2qmk(kle):
+    """Convert a KLE layout to QMK's layout format.
+    """
+    layout = []
+
+    for row in kle:
+        for key in row:
+            if key['decal']:
+                continue
+
+            qmk_key = OrderedDict(
+                label="",
+                x=key['column'],
+                y=key['row'],
+            )
+
+            if key['width'] != 1:
+                qmk_key['w'] = key['width']
+            if key['height'] != 1:
+                qmk_key['h'] = key['height']
+            if 'name' in key and key['name']:
+                qmk_key['label'] = key['name'].split('\n', 1)[0]
+            else:
+                del (qmk_key['label'])
+
+            layout.append(qmk_key)
+
+    return layout