Add SLIC pubkey and marker parsers

common/ksy/ms_slic_marker.ksy

@@ -0,0 +1,30 @@
+meta:
+  id: ms_slic_marker
+  title: Microsoft SLIC Marker
+  application: Phoenix-based UEFI firmware
+  file-extension: slmr
+  tags:
+    - firmware
+  license: CC0-1.0
+  ks-version: 0.9
+  endian: le
+
+seq:
+- id: type
+  type: u4
+- id: len_marker
+  type: u4
+- id: version
+  type: u4
+- id: oem_id
+  size: 6
+- id: oem_table_id
+  size: 8
+- id: windows_flag
+  type: u8
+- id: slic_version
+  type: u4
+- id: reserved
+  size: 16
+- id: signature
+  size: 128