Fix multiple issues on unbound advanced options GUI:
Fix multiple issues on unbound advanced options GUI:

- Drop many wrong key assignments to pconfig
- Add missing keys to pconfig
- Deal fine with boolean parameters
- Mark subsystem dirty to require apply button
- Drop calls to enable_change()
- Remove unecessary js function enable_change()
- Fix wrong <input> names
- Change all <select> and text inputs fields to display current value

pfsense/pfsense,phil-davis/pfsense,phil-davis/pfsense,dennypage/pfsense,pfsense/pfsense,dennypage/pfsense,BlackstarGroup/pfsense,dennypage/pfsense,ptorsten/pfsense,brunostein/pfsense,NOYB/pfsense,ptorsten/pfsense,jxmx/pfsense,pfsense/pfsense,jxmx/pfsense,NewEraCracker/pfsense,phil-davis/pfsense,ch1c4um/pfsense,BlackstarGroup/pfsense,NewEraCracker/pfsense,BlackstarGroup/pfsense,ch1c4um/pfsense,BlackstarGroup/pfsense,phil-davis/pfsense,NOYB/pfsense,NewEraCracker/pfsense,ptorsten/pfsense,ch1c4um/pfsense,jxmx/pfsense,brunostein/pfsense,NewEraCracker/pfsense,NOYB/pfsense,pfsense/pfsense,brunostein/pfsense,ch1c4um/pfsense,dennypage/pfsense