Add org builder initializer

src/org/org_builder.nim

@@ -1,5 +1,5 @@
 import std/sugar
-import std/collections/sequtils
+import results
 import ./org_types
 import ../parser/parser_types
 
@@ -7,7 +7,11 @@ type OrgBuilderT* = OrgElement
 type OrgBuilder* = Builder[OrgBuilderT]
 type OrgBuilderResult* = BuilderResult[OrgBuilderT]
 
-func makeOrgBuilderToken*(kind: orgElementKind): string -> OrgBuilderT =
+func initOrgBuilder*(content: string): OrgBuilderResult =
+  return OrgBuilderResult.ok(OrgBuilder((
+    parser: initParser(content),
+    tree: newSeq[OrgBuilderT](),
+  )))
 
 func textTokenizer*(kind: orgElementKind): seq[ParserToken] -> seq[OrgBuilderT] =
   return func(tokens: seq[ParserToken]): seq[OrgBuilderT] =

src/parser/parser_types.nim

@@ -51,7 +51,7 @@ type
 func initParserToken*(x: char): ParserToken = ParserToken(kind: parserTokenChar, charValue: x)
 func initParserToken*(x: string): ParserToken = ParserToken(kind: parserTokenString, stringValue: x)
 
-proc initParser*(str: string): Parser =
+func initParser*(str: string): Parser =
   Parser(
     state: ParserState(
       stream: str,