Updating requirements.txt

source/requirements.txt

-prettytable==0.7.2
+asgiref==3.3.1
+cycler==0.10.0
+Django==3.1.3
+django-extensions==3.0.9
+Jinja2==2.11.2
+kiwisolver==1.3.1
+MarkupSafe==1.1.1
+matplotlib==3.3.3
 mpld3==0.5.1
-pytz==2019.3
-numpy==1.19.3
-scipy==1.5.3
+numpy==1.19.4
 pandas==1.1.4
-matplotlib==3.3.2
+Pillow==8.0.1
+prettytable==2.0.0
+pyparsing==2.4.7
+python-dateutil==2.8.1
+pytz==2020.4
+scipy==1.5.4
+six==1.15.0
+sqlparse==0.4.1
+wcwidth==0.2.5