Add ec_concurrent:bf_seq/1 module and func
Create empty simple_cache project
Add sc_server module for simple_cache
Define an empty list as the default state for sc_server:init/1
Add sc_server:store/2 func and handle it in... sc_server:handle_cast/2
Rename store to insert in sc_server
Add sc_server:lookup/1 func and handle it in sc_server:handle_call/3
Add sc_server:stop/0 and handle it in sc_server:handle_call/3
Add sc_sup supervisor module
Move simple_cache_app to sc_app
Tweak simple_cache.app.src contents
Remove unused simple_cache_sup module
Ignore ebin directory