searching a saved search with cli limits to 100 results by default

[jreiberkyle]

An undocumented feature of searching with a saved search is that, if you do not specify limit, the result is limited to 100 items.

Example:

planet data create-search \
    --geom lake.json --item-type PSScene4Band --asset-type visual \
    --date acquired gt 2017-02-14 \
    --date acquired lt 2018-01-01 \
    --name lake_test

planet data saved-search <id of above search>

returns 100 items, while there are actually 317 items returned if limit is set, e.g.

planet data saved-search <id of above search> --limit 500

[jreiberkyle]

Closed by #185