[KAPT] Cache annotation processors' classloaders

Adds experimental feature to cache annotation processors' classloaders
It should increase speed of KAPT for consecutive runs
Works for gradle only (it stores cl in gradle daemon)
#KT-28901 Fixed

gradle/verification-metadata.xml

@@ -1510,6 +1510,12 @@
             <sha256 value="8d175561619289a527573cfbdcf872eb5c1216cf9ab692a0ef3dba6d793f63b4" origin="Generated by Gradle"/>
          </artifact>
       </component>
+      <component group="com.google.errorprone" name="error_prone_annotations" version="2.3.4">
+         <artifact name="error_prone_annotations-2.3.4.jar">
+            <md5 value="67beeee58df00366100061c7da82f4c2"/>
+            <sha256 value="baf7d6ea97ce606c53e11b6854ba5f2ce7ef5c24dddf0afa18d1260bd25b002c"/>
+         </artifact>
+      </component>
       <component group="com.google.errorprone" name="error_prone_parent" version="2.0.18">
          <artifact name="error_prone_parent-2.0.18.pom">
             <md5 value="0456a9fe3a1372c1e924798101ee09ec" origin="Generated by Gradle"/>
@@ -1656,6 +1662,12 @@
             <sha256 value="74af0e8dd935894ce9bcb8e2842dd0001581b84cb6a7751c3ef9314011399ba4" origin="Generated by Gradle"/>
          </artifact>
       </component>
+      <component group="com.google.guava" name="guava" version="29.0-jre">
+         <artifact name="guava-29.0-jre.jar">
+            <md5 value="c87962fe0522b105531f37fe351b3b0c"/>
+            <sha256 value="b22c5fb66d61e7b9522531d04b2f915b5158e80aa0b40ee7282c8bfb07b0da25"/>
+         </artifact>
+      </component>
       <component group="com.google.guava" name="guava-parent" version="13.0.1">
          <artifact name="guava-parent-13.0.1.pom">
             <md5 value="c78a1aecd4642f3f6b3c00b09398b0c8" origin="Generated by Gradle"/>
@@ -8564,6 +8576,12 @@
             <sha256 value="deb10353dd2b1bee0e548b74014d80a1179a8faaf8d0d886c01b4d6ca9300068" origin="Generated by Gradle"/>
          </artifact>
       </component>
+      <component group="org.checkerframework" name="checker-qual" version="2.11.1">
+         <artifact name="checker-qual-2.11.1.jar">
+            <md5 value="936884d7b04ee8f064df137bcdfe470d"/>
+            <sha256 value="015224a4b1dc6de6da053273d4da7d39cfea20e63038169fc45ac0d1dc9c5938"/>
+         </artifact>
+      </component>
       <component group="org.checkerframework" name="checker-qual" version="2.5.2">
          <artifact name="checker-qual-2.5.2.jar">
             <md5 value="04acc78b24bbd365423da357da003cf0" origin="Generated by Gradle"/>