config: New config scheme

This commit adds 3 main changes:
- Modified the default config.ini filename to config.example.ini
- Added new configs for PostgreSQL
- Modified .gitignore to include vim swapfiles and production config
  files

.gitignore

@@ -1 +1,3 @@
 __pycache__
+config.ini
+*.swp

config.example.ini

@@ -0,0 +1,15 @@
+[Bot]
+Token = 
+Status = 
+
+[Database]
+Database =
+User =
+Password =
+Host = 
+Port =
+
+[Channels]
+MemberLogs = 
+ModLogs = 
+Skynet = 

config.ini

@@ -1,8 +0,0 @@
-[Bot]
-Token= 
-Status= 
-
-[Channels]
-MemberLogs = 
-ModLogs = 
-Skynet =