[css-typed-om] Add factory functions for new viewport/container units (#1067)

Author: andruud

css-typed-om/Overview.bs

@@ -2297,6 +2297,30 @@ partial namespace CSS {
     CSSUnitValue vb(double value);
     CSSUnitValue vmin(double value);
     CSSUnitValue vmax(double value);
+    CSSUnitValue svw(double value);
+    CSSUnitValue svh(double value);
+    CSSUnitValue svi(double value);
+    CSSUnitValue svb(double value);
+    CSSUnitValue svmin(double value);
+    CSSUnitValue svmax(double value);
+    CSSUnitValue lvw(double value);
+    CSSUnitValue lvh(double value);
+    CSSUnitValue lvi(double value);
+    CSSUnitValue lvb(double value);
+    CSSUnitValue lvmin(double value);
+    CSSUnitValue lvmax(double value);
+    CSSUnitValue dvw(double value);
+    CSSUnitValue dvh(double value);
+    CSSUnitValue dvi(double value);
+    CSSUnitValue dvb(double value);
+    CSSUnitValue dvmin(double value);
+    CSSUnitValue dvmax(double value);
+    CSSUnitValue cqw(double value);
+    CSSUnitValue cqh(double value);
+    CSSUnitValue cqi(double value);
+    CSSUnitValue cqb(double value);
+    CSSUnitValue cqmin(double value);
+    CSSUnitValue cqmax(double value);
     CSSUnitValue cm(double value);
     CSSUnitValue mm(double value);
     CSSUnitValue Q(double value);
@@ -2342,7 +2366,7 @@ partial namespace CSS {
     if it's stored in another variable;
     `let foo = CSS.px; let val = foo(5);` does not return a `{value: 5, unit: "foo"}` {{CSSUnitValue}}.
     The above talk about names is just a shorthand
-    to avoid defining the unit individually for all ~20 functions.
+    to avoid defining the unit individually for all ~60 functions.
 </div>