Add method to write new snapshot that contains a subset of another snapshot's molecules. - #85

Add method to write new snapshot that contains a subset of another snapshot's molecules.#85

chrisjonesBSU wants to merge 3 commits into

cmelab:mastercmelab/cmeutils:masterfrom

chrisjonesBSU:trim-snapshotchrisjonesBSU/cmeutils:trim-snapshotCopy head branch name to clipboard