Adds properties parameter to @turf/centroid and @turf/center

[stebogit]

@DenisCarriere in order to add the parameter to center-of-mass we need to merge this to master first, as center-of-mass depends on centroid.

Ref: #755

[DenisCarriere]

Interestingly you can actually update all 3 at once and center-of-mass will use the latest version of centroid since lerna uses symbolic links to all the dependencies of each modules.

$ lerna bootstrap

[DenisCarriere]

@stebogit Updated significantly the tests:

• Add properties support to center-of-mass
• Update Readmes
• Update typescript definitions
• Update tests using glob
• Update test fixtures
• Update benchmark results
• Added switch statement CenterOfMass
• Added Typescript tests (types.ts)