Add analysis:kt-reference module and move KtReferences there.

analysis/analysis-api-impl-base/build.gradle.kts

@@ -7,6 +7,7 @@ dependencies {
     api(project(":compiler:psi"))
     api(project(":analysis:analysis-api"))
     api(project(":analysis:analysis-api-impl-barebone"))
+    api(project(":analysis:kt-reference"))
     api(intellijCore())
     implementation(project(":analysis:analysis-internal-utils"))
 
@@ -27,4 +28,4 @@ sourceSets {
     "test" { projectDefault() }
 }
 
-testsJar()
+testsJar()