ODS load perf: avoid excessive calls to uppercase to compare tab names.

Change-Id: I37b9e49607c8c51f10bc8ff8fc342b02fdb8b7e1
ODS load perf: transfer ownership of the ScTokenArray to save cycles.

Add API to wnsure we don't end up allocating 32k bytes of tokens
for each ScFormulaToken, as happens when you Add a token to a new
empty ScTokenArray.

Change-Id: Ib12a3065eb513243a2146ebb009fbaa650385dd9
most certainly == was meant

Change-Id: I1b0833daa576cd8603421e1036b8773badc8c775