Edit some of the high level hierarchy classes in OBA

[rays22]

Edit the following high level hierarchy classes in to biologically meaningful groups:

• [ ] OBA:2020000 age of onset of disease
• [ ] OBA:0003870 aging onset quality
• [ ] OBA:0005494 aging rate
• [ ] OBA:0002423 cholesterol esterification rate
• [ ] OBA:VT0005372 life span trait
• [ ] OBA:0000088 liquid surface tension
• [ ] OBA:1001086 QRS duration
• [ ] OBA:0003744 regulation of water loss via skin rateO
• [ ] OBA:VT0002796 skin barrier function attribute
• [ ] OBA:0000141 synaptic plasticity
• [x] OBA:VT0008752 tumor necrosis factor amount
• [ ] OBA:0000181 viral protein levels