Ability to pass ClientCache object to GeodeSchema constructor

Would like to create a new Constructor inside GeodeSchema that takes in the clientCache as a parameter. 

We have a use case where the creation of geode clientCache is done in a separate api library.

This the change I am proposing

public GeodeSchema(String locatorHost, int locatorPort,
String[] regionNames, String pdxAutoSerializerPackageExp,
SchemaPlus parentSchema)

{ this(regionNames,createClientCache(locatorHost, locatorPort, pdxAutoSerializerPackageExp, true) ,parentSchema); }

public GeodeSchema(String[] regionNames, ClientCache clientCache, SchemaPlus parentSchema)

{ super(); this.regionNames = regionNames; this.parentSchema = parentSchema; this.clientCache = clientCache; }