one of the query terms

[Comments-Typos] Update all comments and also fix some typos. I think themis now can go public to hy463

[GUI] Just the basic for the GUI of themis. We could possibly add some kind of rest service and create a web application

[Index] I think I have finished with the basic structure of the index. I have to check again the comments so that I get no complaints from the students :)

[DocInfoFull] A class that can be updated to provide any information about a specific document, like the authors, titles, etc.

[DocInfoEssential] Remove explicit member of properties and use a map with keys a specific enumeration value along with an object for its value.
Although not so space efficient as previous implementation it has a more clear and expandable interface

[DocInfoEssential] A class that holds all information we need from the index to implement the vector space and okapi-bm25 models.

[Config] Also add a meta index that holds information about metadata about the index like avgDL of collection, path of collection, timestamp, etc.

[Config] Also add an option that reads available memory in case teams want to depend on their available memory size