first two poms for mavenizing flex falcon project and main compiler. Both build successful. Note that JBurg dependency is not available in public repository yet
added jflex and antler maven plugin generation
unstable changes (need deep revision)
ignore maven target folder

Signed-off-by: Jose Barragan <josebarragan@apache.org>
bump JFlex dependency plugin version to 1.5.0

Signed-off-by: Jose Barragan <josebarragan@apache.org>
remove JFlex parse warnings
antlr execution pass
antlr ajustments on pom
Testing fixed old antlr maven plugin