Restore Requirements.txt after merge

requirements.txt

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+alabaster==0.7.12
+argh==0.26.2
+Babel==2.8.0
+bottle==0.12.18
+cached-property==1.5.1
+certifi==2020.6.20
+cffi==1.14.1
+chardet==3.0.4
+click==7.1.2
+colorama==0.4.3
+commonmark==0.9.1
+docutils==0.16
+idna==2.10
+imagesize==1.2.0
+Jinja2==2.11.2
+livereload==2.6.2
+MarkupSafe==1.1.1
+marshmallow==3.7.1
+packaging==20.4
+pathtools==0.1.2
+platformio>=5.0.1
+port-for==0.3.1
+pycparser==2.20
+pyelftools==0.26
+pygit2==1.2.1
+Pygments==2.6.1
+pyparsing==2.4.7
+pyserial==3.4
+pytz==2020.1
+PyYAML==5.3.1
+recommonmark==0.6.0
+requests==2.24.0
+semantic-version==2.8.5
+six==1.15.0
+snowballstemmer==2.0.0
+tabulate==0.8.7
+tornado==6.0.4
+urllib3==1.25.10
+watchdog==0.10.3