[TI-59] summary or'd tag filter

_lash on 2017-01-13T23:02:46Z says:_

When supplying tags for timew summary, only entries containing all of the tags specificed are shown. I propose possibility for or'ing them instead/aswell.

CURRENT:

Entry 1 has keyword A, B
Entry 2 has keyword B, C

timew summary A B matches entry 1
timew summary B A matches entry 1
timew summary B matches both
timew summary A C matches neither
timew summary C A matches neither

PROPOSED:

Entry 1 has keyword A, B
Entry 2 has keyword B, C

timew summary A B matches entry 1
timew summary B A matches entry 1
timew summary B matches both
timew summary A C matches both
timew summary C A matches both