color are now hex colors (#403)

* writeSBML: channel's annotation is cleaned up and channel's are written in MMenz form,readSBML:Enzyme-cplx  connection of reactant/product's are done based on stoichiometry number and reading back channel from MMenz, connected input pool with msg as 'in' and output pool msg as 'out'

* rgba color converted to hex color

Co-authored-by: HarshaRani <hrani@ncbs.res.in>

Author: hrani

python/moose/chemUtil/chemConnectUtil.py

@@ -89,7 +89,7 @@ def colorCheck(fc_bgcolor):
             hexlist ="#"
             for n in fc_bgcolor:
                 if c < 3:
-                    #hexlist = hexlist+str("%02x" % int(n))
+                    hexlist = hexlist+str("%02x" % int(n))
                     c = c+1;
             fc_bgcolor = hexlist
         return(fc_bgcolor)