[Keyboard] Add SharkPCB rev Alpha support (#7090)

* Add SharkPCB rev Alpha support

* Solve PWM pin assignment 

- Solve PWM pin configuration for the SharkPCB rev.Alpha, which backlight pin is B0

* Update shark.c copyright name

* Update shark.h copyright section

* Apply suggestions from code review

Suggestions from @zvecr and @drashna were accepted and applied for neater code. Also fixed typos and removed unused comments. See [pull request](https://github.com/qmk/qmk_firmware/pull/7090/files#diff-70c0a1f44287ae5810170b4180cdaa5d) for more information.

Co-Authored-By: Joel Challis <git@zvecr.com>
Co-Authored-By: Drashna Jaelre <drashna@live.com>

* Update PRODUCT_ID into config.h

* Update metadata info.json

Fields "keyboard_name", "keyboard_folder", "url", "maintainer" were updated

1 files changed, 39 insertions, 0 deletions

diff --git a/keyboards/acheron/shark/shark.h b/keyboards/acheron/shark/shark.h
new file mode 100644
index 000000000..d58b72548
--- /dev/null
+++ b/keyboards/acheron/shark/shark.h
@@ -0,0 +1,39 @@
+/* Copyright 2019 Álvaro "Gondolindrim" Volpato
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include "quantum.h"
+
+/* This a shortcut to help you visually see your layout.
+ *
+ * The first section contains all of the arguments representing the physical
+ * layout of the board and position of the keys.
+ *
+ * The second converts the arguments into a two-dimensional array which
+ * represents the switch matrix.
+ */
+#define LAYOUT_ortho_4x12( \
+    K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, \
+    K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, \
+    K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, \
+    K30, K31, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B  \
+) \
+{ \
+    { K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B }, \
+    { K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B }, \
+    { K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B }, \
+    { K30, K31, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B }  \
+}