New java API.
Add remark on query image size limit.
Add readme file for java api.
New java API.

Summary:
Add remark on query image size limit.

Add readme file for java api.

New android sample code.

Test Plan:
Code has been tested using the "monitoring@kooaba.com" account (credentials on passpack).

Both authentication methods (KA and token) have been tested and are working.

Tested with png and jpeg images.

Please review code style and structure.  Be gentle.

Reviewers: prodan, cech, jaeggli, wisti

Differential Revision: https://phabricator.kooaba.ch/D25
Change visibility of some api methods, as requested in D25#1.
Remove not allowed dollar sign from multipart boundary.
Clarify usage of instance members via `this` qualifier.
New java API.

Summary:
Add remark on query image size limit.

Add readme file for java api.

New android sample code.

Test Plan:
Code has been tested using the "monitoring@kooaba.com" account (credentials on passpack).

Both authentication methods (KA and token) have been tested and are working.

Tested with png and jpeg images.

Please review code style and structure.  Be gentle.

Reviewers: prodan, cech, jaeggli, wisti

Reviewed By: jaeggli

Differential Revision: https://phabricator.kooaba.ch/D25
Update kooaba api library in android project.