Change layout to more go-style-ish, replace some modules

* Deejay files, split them to achieve go-style project layout
* Replace logrus with log/slog module to reduce dependencies
* Replace gopkg.in/ini.v1 with github.com/wlevene/ini to make sure all modules BSD licensed
* Update linter config && fix tons of linter warnings
* Update .gitignore
* Update README.md

Makefile

@@ -1,19 +1,20 @@
 #!/usr/bin/env gmake -f
 
 GOOPTS=CGO_ENABLED=0
-BUILDOPTS=-ldflags="-s -w" -a -gcflags=all=-l -trimpath
+BUILDOPTS=-ldflags="-s -w" -a -gcflags=all=-l -trimpath -buildvcs=false
+BINARY=joyproxy
 
 all: clean build
 
 build:
-	${GOOPTS} go build ${BUILDOPTS}
+	${GOOPTS} go build ${BUILDOPTS} -o ${BINARY} ./cmd/${BINARY}
 
 clean:
-	go clean
+	$(RM) ${BINARY}
 
 upgrade:
-	rm -rf vendor
-	go get -d -u -t ./...
+	go get -u ./...
+	go mod tidy
 	go mod vendor
 
 # vim: set ft=make noet ai ts=4 sw=4 sts=4: