[Keyboard] Add Hillside 46 (#17968)

* 46: Copy from 52 and file rename

* 46: File internals refer to 46, not 52

* 46: Board remove row

* 46: Keymap: Lshift becomes ctrl, Rshift a symbol

- ESC and CAPs on upper thumbs
- AltGr and App on upper thumbs
- Page up/down on upper thumbs
- F11, F12 and mods for them on adjust

* 46: Readme update for json script, tweaks

* 46: Board fix LED count

* 46: Keymap: Arrows right, symmetric layer keys

* 46: Readme: Image link with and w/o outer pinkie

* 46: Keymap: link fixed image of nav layer

* 46: Keymap: fix reaching adj layer

Co-authored-by: mmccoyd <mmccoyd@cs.berkley.edu>

1 files changed, 19 insertions, 0 deletions

diff --git a/keyboards/handwired/hillside/46/46.c b/keyboards/handwired/hillside/46/46.c
new file mode 100644
index 0000000000..9a3bd3abc8
--- /dev/null
+++ b/keyboards/handwired/hillside/46/46.c
@@ -0,0 +1,19 @@
+// Copyright 2022 Michael McCoyd (@mmccoyd)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "46.h"
+
+// Keymatrix spots to ignore, as one signals handedness and others have no key
+const matrix_row_t matrix_mask[] = {
+//c:543210  column id's
+  0b111111,
+  0b111111,
+  0b111111,
+  0b111110,
+  
+//c:543210  
+  0b111111,
+  0b111111,
+  0b111111,
+  0b111110
+};