Restructure the project

diff --git a/cbgetter.py b/coffee_getter/bot.py
similarity index 100%
rename from cbgetter.py
rename to coffee_getter/bot.py

diff --git a/cbconf.py b/coffee_getter/conf.py
similarity index 100%
rename from cbconf.py
rename to coffee_getter/conf.py

diff --git a/cbdb.py b/coffee_getter/db.py
similarity index 100%
rename from cbdb.py
rename to coffee_getter/db.py

diff --git a/ut/test_getter.py b/ut/test_bot.py
similarity index 100%
rename from ut/test_getter.py
rename to ut/test_bot.py