Platform libs: Generate static cache

The following targets are supported:
macos_x64
ios_x64
ios_arm64
ios_arm32

build.gradle

@@ -66,6 +66,14 @@ ext {
     platformManager = new PlatformManager(DistributionKt.buildDistribution(projectDir.absolutePath),
             ext.experimentalEnabled)
 
+    cacheableTargets = [
+            KonanTarget.MACOS_X64.INSTANCE,
+            KonanTarget.IOS_X64.INSTANCE,
+            KonanTarget.IOS_ARM64.INSTANCE,
+            KonanTarget.IOS_ARM32.INSTANCE
+    ]
+    cacheableTargetNames = cacheableTargets.collect { it.visibleName }
+
     kotlinCompilerModule="org.jetbrains.kotlin:kotlin-compiler:${kotlinVersion}"
     kotlinStdLibModule="org.jetbrains.kotlin:kotlin-stdlib:${kotlinVersion}"
     kotlinCommonStdlibModule="org.jetbrains.kotlin:kotlin-stdlib-common:${kotlinStdlibVersion}:sources"
@@ -445,6 +453,9 @@ targetList.each { target ->
 
     task("${target}PlatformLibs") {
         dependsOn ":platformLibs:${target}Install"
+        if (target in cacheableTargetNames) {
+            dependsOn(":platformLibs:${target}Cache")
+        }
     }
 
     task("${target}CrossDist") {
@@ -464,6 +475,7 @@ targetList.each { target ->
 
 task distPlatformLibs {
     dependsOn ':platformLibs:hostInstall'
+    dependsOn ':platformLibs:hostCache'
 }
 
 task dist {