feat(run-liners): initial implementation

run-liners/tests/thumbnail/test.typ

@@ -0,0 +1,39 @@
+#import "/lib.typ": *
+
+#set page(margin: 1em, height: auto, width: 5in)
+
+*`#run-in-enum()`* creates run-in numbered lists, like:
+#run-in-enum(
+  [one],
+  [two],
+  [three],
+).
+
+#line(length: 100%)
+
+*`#run-in-list()`* creates run-in bullet points, like:
+#run-in-list(
+  [one],
+  [two],
+  [three],
+).
+
+#line(length: 100%)
+
+*`#run-in-terms()`* creates run-in term lists, like:
+#run-in-terms(
+  ([enumerations], [numbered lists]),
+  ([lists], [bulleted lists]),
+  ([term lists], [definition lists]),
+  ([verses], [poetry (or similar) lines])
+).
+
+#line(length: 100%)
+
+*`#run-in-verse()`* creates run-in verses, like:
+#run-in-verse(
+  [Now is the time],
+  [for all good men],
+  [to come to the aid],
+  [of their country]
+).