add README
add setup.py
add SearchApiV2 class with _append_query() mehod and tests
add SearchApiV2.near() method with tests
add SearchApiV2.lan_lot() method with tests
add not implemented SearchApiV2.bbox() and geo_points() methods
add SearchApiV2.radius() method with tests
add SearchApiV2.city() method with tests
add SearchApiV2.state() method with tests
add SearchApiV2.zip() method with tests
add SearchApiV2.country() method with tests
add SearchApiV2.query() method with tests
add SearchApiV2.current_page() method with tests
add SearchApiV2.per_page() method with tests
add SearchApiV2.sort() method with tests
add SearchApiV2.facets() method with tests
update docs
add SearchApiV2.category() method with tests
add SearchApiV2.topic() method with tests
add SearchApiV2.start_date() method with tests