Add factorial/sentence case element

[Steffan153]

This also adds decrement element, exclusive zero range, exclusive one range, and parity

I tried putting the code into Myxal, but it didn't work, so you can paste it in once Myxal works.

Parsing program...
Compiling program...
Extracting runtime classes...
Writing to jar...
Performing post-compilation optimisations...
ProGuard, version undefined
Unexpected error while computing stack sizes:
  Class       = [jyxal/Main]
  Method      = [main([Ljava/lang/String;)V]
  Exception   = [java.lang.IllegalArgumentException] (Stack size becomes negative after instruction [20] invokestatic #39 = Methodref(io/github/seggan/myxal/runtime/RuntimeMethods.factorial(Lio/github/seggan/myxal/runtime/ProgramStack;)Ljava/lang/Object;) in [jyxal/Main.main([Ljava/lang/String;)V])
Unexpected error while editing code:
  Class       = [jyxal/Main]
  Method      = [main([Ljava/lang/String;)V]
  Exception   = [java.lang.IllegalArgumentException] (Stack size becomes negative after instruction [20] invokestatic #39 = Methodref(io/github/seggan/myxal/runtime/RuntimeMethods.factorial(Lio/github/seggan/myxal/runtime/ProgramStack;)Ljava/lang/Object;) in [jyxal/Main.main([Ljava/lang/String;)V])
Exception in thread "main" java.lang.IllegalArgumentException: Stack size becomes negative after instruction [20] invokestatic #39 = Methodref(io/github/seggan/myxal/runtime/RuntimeMethods.factorial(Lio/github/seggan/myxal/runtime/ProgramStack;)Ljava/lang/Object;) in [jyxal/Main.main([Ljava/lang/String;)V]
        at proguard.classfile.attribute.visitor.StackSizeComputer.evaluateInstructionBlock(StackSizeComputer.java:348)
        at proguard.classfile.attribute.visitor.StackSizeComputer.visitCodeAttribute0(StackSizeComputer.java:162)
        at proguard.classfile.attribute.visitor.StackSizeComputer.visitCodeAttribute(StackSizeComputer.java:124)
        at proguard.classfile.editor.StackSizeUpdater.visitCodeAttribute(StackSizeUpdater.java:44)
        at proguard.classfile.editor.CodeAttributeEditor.visitCodeAttribute0(CodeAttributeEditor.java:595)
        at proguard.classfile.editor.CodeAttributeEditor.visitCodeAttribute(CodeAttributeEditor.java:530)
        at proguard.classfile.util.DynamicMemberReferenceInitializer.visitCodeAttribute(DynamicMemberReferenceInitializer.java:195)
        at proguard.classfile.attribute.CodeAttribute.accept(CodeAttribute.java:138)
        at proguard.classfile.ProgramMethod.attributesAccept(ProgramMethod.java:148)
        at proguard.classfile.attribute.visitor.AllAttributeVisitor.visitProgramMember(AllAttributeVisitor.java:94)
        at proguard.classfile.visitor.MemberVisitor.visitProgramMethod(MemberVisitor.java:57)
        at proguard.classfile.ProgramMethod.accept(ProgramMethod.java:140)
        at proguard.classfile.ProgramClass.methodsAccept(ProgramClass.java:695)
        at proguard.classfile.visitor.AllMethodVisitor.visitAnyClass(AllMethodVisitor.java:46)
        at proguard.classfile.visitor.ClassVisitor.visitProgramClass(ClassVisitor.java:40)
        at proguard.classfile.ProgramClass.accept(ProgramClass.java:544)
        at proguard.classfile.ClassPool.classesAccept(ClassPool.java:291)
        at proguard.Initializer.execute(Initializer.java:228)
        at proguard.pass.PassRunner.run(PassRunner.java:24)
        at proguard.ProGuard.initialize(ProGuard.java:328)
        at proguard.ProGuard.execute(ProGuard.java:130)
        at io.github.seggan.myxal.app.Main.doMain(Main.kt:126)
        at io.github.seggan.myxal.app.Main.main(Main.kt:140)

[Seggan]

Yeah... sorry, but you could do a lot better

[Seggan]

Woops hit wrong button

i fixed it

[Seggan]

Much better. just some naming conventions

[Seggan]

Whats with me hitting the wrong buttons

fixed

[Seggan]

Almost there

[cgccuser]

I don't actually know how Myxal works but here's some minor stuff.

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