[inspector] move coverage related methods to profiler

test/inspector/cpu-profiler/coverage-expected.txt

-Test collecting code coverage data with Runtime.collectCoverage.
+Test collecting code coverage data with Profiler.collectCoverage.
 
 Running test: testPreciseCoverage
 {
     id : <messageId>
     result : {
     }
 }
 {
     id : <messageId>
     result : {
@@ skipping 312 matching lines @@
                             }
                         ]
                     }
                 ]
                 scriptId : <scriptId>
                 url : 
             }
         ]
     }
 }