Toolshed (#17895)

* ogh

* i should save my work

* ogh

* hhcdfhjbghshbxdfhghshc
- lots of bugs in parsing still
- invocation is a stub

* expr parsing works

* awawa

* Saving work

* Improve APIs a bit all around, add shortcuts.

* awa

* awa

* AAAAAA

* save work

* Move shit to engine

* lord

* bql is kill

* forgot the fucking bike rack

* bql is kill for real

* pjb will kill me

* aughfhbdj

* adgddf

* gdsgvfvxshngfgh

* b

* hfsjhghj

* a

* tf you mean i have to document it

* follow C# standards

* Assorted cleanup and documentation pass, minor bugfix in ValueRefParser.

* Start porting old commands, remove that pesky prefix in favor of integrating with the shell.

* bw

* Fix valueref up a bit, improve autocomplete for it.

* awa

* fix tests

* git shut up

* Arithmetic commands.

* parse improvements

* Update engine.

---------

Co-authored-by: moonheart08 <moonheart08@users.noreply.github.com>

Content.Client/Stylesheets/StyleNano.cs

@@ -162,6 +162,7 @@ namespace Content.Client.Stylesheets
             var notoSansBold16 = resCache.NotoStack(variation: "Bold", size: 16);
             var notoSansBold18 = resCache.NotoStack(variation: "Bold", size: 18);
             var notoSansBold20 = resCache.NotoStack(variation: "Bold", size: 20);
+            var notoSansMono = resCache.GetFont("/EngineFonts/NotoSans/NotoSansMono-Regular.ttf", size: 12);
             var windowHeaderTex = resCache.GetTexture("/Textures/Interface/Nano/window_header.png");
             var windowHeader = new StyleBoxTexture
             {
@@ -512,6 +513,8 @@ namespace Content.Client.Stylesheets
 
             Stylesheet = new Stylesheet(BaseRules.Concat(new[]
             {
+                Element().Class("monospace")
+                    .Prop("font", notoSansMono),
                 // Window title.
                 new StyleRule(
                     new SelectorElement(typeof(Label), new[] {DefaultWindow.StyleClassWindowTitle}, null, null),