add /search api

[allanwalpy]

add POST /api/search

in body information about "search filters"; if no filters provided - return list of all stored vacancies; update: at least one filter must be specified;

search filters:

• salary range;

  • more than X;
  • less then Y;
  • more than X and less then Y;

• by organization name (exact match, Equals, IgnoreCase Comparison);

• by key words; (like match, contains all/any words, in Title or in Description);

  • all or any of words must be present;
  • search in Title, Description or both;

• by employment type (any/all employment type match);

  • approved list of employment types;
  • all must be present;
  • any must be present;
  • disapproved list (all must not be present);

Filters are subject to change;

all output vacancies are sorted by LastUpdated field, descending order (more recent first);