Add method to parse WKT string to legal Flatten shape or array of shapes: point, segment, multiline, polygon,
Support WKT types:
POINT, LINESTRING, POLYGON, MULTIPOINT, MULTILINESTRING, MULTIPOLYGON, GEOMETRYCOLLECTION
In v1.5.6 added function parseWKT(str) to convert single WKT element to flatten-js shape.
Type converted as following
POINT -> Point,
LINESTRING -> Multiline
POLYGON -> Polygon
MULTIPOINT -> Array
MULTILINESTRING -> Array
MULTIPOLYGON -> Polygon
GEOMETRYCOLLECTION -> Array<Point | Multiline | Polygon>
Add method to parse WKT string to legal Flatten shape or array of shapes: point, segment, multiline, polygon, Support WKT types: POINT, LINESTRING, POLYGON, MULTIPOINT, MULTILINESTRING, MULTIPOLYGON, GEOMETRYCOLLECTION