Add control pictures

CHANGELOG.md

@@ -65,6 +65,47 @@
 - Currency
   - `riyal`: ⃁
 
+- Control (Printable symbols representing non-printable characters)
+
+  - `null` ␀
+  - `heading.start` ␁
+  - `text.start` ␂
+  - `text.end` ␃
+  - `transmission.end` ␄
+  - `transmission.block.end` ␗
+  - `enquiry` ␅
+  - `bell` ␇
+  - `backspace` ␇
+  - `tab.h` ␉
+  - `tab.v` ␋
+  - `line.feed` ␊
+  - `line.return` ␍
+  - `line.feed` ␌
+  - `shift.out` ␎
+  - `shift.in` ␏
+  - `escape` ␐
+  - `device.one` ␑
+  - `device.two` ␒
+  - `device.three` ␓
+  - `device.four` ␔
+  - `acknowledge` ␆
+  - `acknowledge.not` ␕
+  - `synchronous` ␖
+  - `cancel` ␘
+  - `medium.end` ␙
+  - `substitute` ␚
+  - `substitute.alt` ␦
+  - `escape` ␛
+  - `separator.file` ␜
+  - `separator.group` ␝
+  - `separator.record` ␞
+  - `separator.unit` ␟
+  - `space` ␠
+  - `delete` ␡
+  - `delete.alt` ␥
+  - `blank` ␢
+  - `blank.box` ␣
+
 ### New in `emoji`
 
 - bigfoot: 🫈

src/modules/sym.txt

@@ -1268,3 +1268,56 @@ gender {
   neuter ⚲
   trans ⚧\vs{text}
 }
+
+// Printable characters representing control (non-printable) characters
+control {
+  null ␀
+  heading
+    .start ␁
+  text
+    .start ␂
+    .end ␃
+  transmission
+    .end ␄
+    .block.end ␗
+  enquiry ␅
+  bell ␇
+  backspace ␇
+  tab
+    .h ␉
+    .v ␋
+  line
+    .feed ␊
+    .return ␍
+    .new ␤
+  form
+    .feed ␌
+  shift
+    .out ␎
+    .in ␏
+  escape ␐
+  device
+    .one ␑
+    .two ␒
+    .three ␓
+    .four ␔
+  acknowledge ␆
+    .not ␕
+  synchronous ␖
+  cancel ␘
+  medium
+    .end ␙
+  substitute ␚
+    .alt ␦
+  escape ␛
+  separator
+    .file ␜
+    .group ␝
+    .record ␞
+    .unit ␟
+  space ␠
+  delete ␡
+    .alt ␥
+  blank ␢
+    .box ␣
+}