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

vendor/github.com/wlevene/ini/test.ini

@@ -0,0 +1,32 @@
+; this is comment
+; author levene 
+; date 2021-8-1
+
+
+a='23'34?::'<>,.'
+c=d
+
+[s1]
+k=67676
+k1 =fdasf 
+k2= sdafj3490&@)34 34w2
+
+# comment 
+# 12.0.0.1
+[s2]
+
+k=3
+
+
+k2=945
+k3=-435
+k4=0.0.0.0
+
+k5=127.0.0.1
+k6=levene@github.com
+
+k7=~/.path.txt
+k8=./34/34/uh.txt
+
+k9=234@!@#$%^&*()324
+k10='23'34?::'<>,.'