add soft breaks to New Line logic (#1)

In our application we sometimes get substation alpha authors that put n at
the end of each line in the dialogue. Usually we would expect that they would
use N instead.  So we will add that to the conditions checked by the parse-
newLine function so that this doesn'
t cause a breaking behavior of actually printing out the literal n at
the end of each line of dialogue.

.gitignore

@@ -12,3 +12,5 @@
 /npm-debug.log
 
 /src/version.ts
+
+.idea

src/parser/parse.ts

@@ -240,7 +240,7 @@ class ParserRun {
 	parse_newline(parent: ParseNode): ParseNode | null {
 		const current = new ParseNode(parent);
 
-		if (this.read(current, "\\N") === null) {
+		if (this.read(current, "\\N") === null && this.read(current, "\\n") === null) {
 			parent.pop();
 			return null;
 		}