Rename tool, add ethermine and refactorization

Signed-off-by: Julien Riou <julien@riou.xyz>

requirements.txt

@@ -1,31 +1,3 @@
-appdirs==1.4.3
-attrs==20.3.0
-CacheControl==0.12.6
-certifi==2019.11.28
-chardet==3.0.4
-colorama==0.4.3
-contextlib2==0.6.0
-distlib==0.3.0
-distro==1.4.0
-flexpoolapi==1.2.7.post2
-html5lib==1.0.1
-humanfriendly==9.1
-idna==2.8
-ipaddr==2.2.0
-Jinja2==2.11.2
-jsonschema==3.2.0
-lockfile==0.12.2
-MarkupSafe==1.1.1
-msgpack==0.6.2
-packaging==20.3
-pep517==0.8.2
-progress==1.5
-pyparsing==2.4.6
-pyrsistent==0.17.3
-pytoml==0.1.21
-requests==2.22.0
-retrying==1.3.3
-si-prefix==1.2.2
-six==1.14.0
-urllib3==1.25.8
-webencodings==0.5.1
+-r requirements/base.txt
+-r requirements/ethermine.txt
+-r requirements/flexpool.txt