[FIX] bot: Import HighlightContextOption
[FIX] bot: Import HighlightContextOption

The bot module should import all options from pywikibot.bot_choice but did not
import HighlightContextOption which caused the solve_disambiguation script to
fail and by extension the misspelling script too. All of that was changed in
d15e0c44.

Change-Id: I33d2c62aca46e1b91df682dbc17917ce54af006e

hasteur/g13bot_tools_new,hasteur/g13bot_tools_new,Darkdadaah/pywikibot-core,icyflame/batman,hasteur/g13bot_tools_new,valhallasw/pywikibot-core,jayvdb/pywikibot-core,PersianWikipedia/pywikibot-core,darthbhyrava/pywikibot-local,jayvdb/pywikibot-core,npdoty/pywikibot,h4ck3rm1k3/pywikibot-core,magul/pywikibot-core,trishnaguha/pywikibot-core,wikimedia/pywikibot-core,npdoty/pywikibot,smalyshev/pywikibot-core,happy5214/pywikibot-core,magul/pywikibot-core,happy5214/pywikibot-core,wikimedia/pywikibot-core,h4ck3rm1k3/pywikibot-core,emijrp/pywikibot-core,Darkdadaah/pywikibot-core,VcamX/pywikibot-core,TridevGuha/pywikibot-core