add simplejson to requirements

requirements.txt

@@ -50,6 +50,7 @@ requests==2.22.0
 scipy==1.4.1
 seaborn==0.10.0
 setproctitle==1.1.10
+simplejson==3.17.5
 six==1.13.0
 snowballstemmer==2.0.0
 Sphinx==2.2.1

setup.py

@@ -249,22 +249,23 @@ setup(
         "binarycpython.tests",
     ],
     install_requires=[
-        "numpy",
-        "pytest",
-        "h5py",
-        "pathos",
-        "pandas",
         "astropy",
+        "colorama",
+        "h5py",
+        "halo",
+        "humanize",
         "matplotlib",
-        "seaborn",
+        "msgpack",
+        "numpy",
+        "pandas",
+        "pathos",
+        "psutil",
+        "pytest",
         "py_rinterpolate",
+        "seaborn",
         "setproctitle",
-        "psutil",
-        "colorama",
+        "simplejson"
         "strip-ansi",
-        "humanize",
-        "halo",
-        "msgpack"
     ],
     include_package_data=True,
     ext_modules=[BINARY_C_PYTHON_API_MODULE],  # binary_c must be loaded