upgraded dependencies (gorilla, goldmark, fsewatcher), using antlr 4.13.1 instead of 4.8 (go vet finds unreachable generated code)
all.bat also builds
fixed semantic error syntax\detabtext_test.fse:1:1 filename mismatch: "detabtext_test.fse" (path) doesn't start with "vt100-vorzAbloese-v100" (name-version)