Reduce QIDO requests in Search page

[cylien]

Using DICOM-Study-Series-Image heretically search to replace the current method. The current method sends a QIDO Study level query and then sends too many QIDO-RS series/instance queries to cause the search page slow. while clicking the search button, send a QIDO Study Level query. If the user clicks the study, then launch the QIDO series/instance level query to avoid sending all QIDO requests of studies.

[birdeggb2777]

Fix #6

[birdeggb2777]

fixed #6

[birdeggb2777]

Fixes #6