Seperate requirements to run the bot and to develop.

- Add a requirements-dev.txt file which includes additional deps for development.
- Add a Dockerfile.develop which installs all deps for development and also enables dev commands.
- Change related documentations on how to run/dev the bot.

requirements.txt

@@ -13,19 +13,12 @@ scipy==1.1.0
 jsonschema==2.6.0
 numpy==1.15.4
 TA-Lib==0.4.17
-pytest==4.0.2
-pytest-mock==1.10.0
-pytest-asyncio==0.9.0
-pytest-cov==2.6.0
 tabulate==0.8.2
 coinmarketcap==5.0.3
 
 # Required for hyperopt
 scikit-optimize==0.5.2
 
-# Required for plotting data
-#plotly==3.1.1
-
 # find first, C search in arrays
 py_find_1st==1.1.3