add HasAnnotation for JavaSootClass, JavaSootField and JavaSootMethod

[Liyw979]

like sootup.core.model.HasPosition

In the follwing case, I want to get urls from class(/fruit) and method (/lychee) and get the full url.

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/fruits")
public class LycheeController {

    @GetMapping("/lychee")
    public String getLychee() {
        return "Here is a fresh lychee!";
    }
}

by adding the HasPosition interface, users could write functions like

String getUrl(has: HasAnnotation) { // "has" could be JavaSootClass or JavaSootMethod
    has.getAnnotations .....
}

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.26%. Comparing base (ba277d8) to head (df89fa8).
Report is 100 commits behind head on develop.

Additional details and impacted files

@@              Coverage Diff               @@
##             develop    #1107       +/-   ##
==============================================
+ Coverage      39.69%   72.26%   +32.57%     
- Complexity      4446     4975      +529     
==============================================
  Files            657      439      -218     
  Lines          29522    18671    -10851     
  Branches        4803     3091     -1712     
==============================================
+ Hits           11719    13493     +1774     
+ Misses         16894     4096    -12798     
- Partials         909     1082      +173     

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[swissiety]

thx!