Merge branch 'feature/submodule' into dev/rene

build.gradle

src/main/jastadd/DumpTree.jrag

src/main/jastadd/NameResolution.jrag

src/main/jastadd/Navigation.jrag

src/main/jastadd/RelAst.parser

src/main/jastadd/RelAst.relast

src/main/jastadd/Ros2Rag.flex

src/main/jastadd/backend/AbstractGrammar.jadd

src/main/jastadd/parser/Preamble.parser

src/main/jastadd/parser/Ros2Rag.parser

src/main/jastadd/scanner/Header.flex

src/main/jastadd/scanner/Keywords.flex

src/main/jastadd/scanner/Macros.flex

src/main/jastadd/scanner/MappingContent.flex

src/main/java/org/jastadd/ros2rag/compiler/Compiler.java