Move gradle/plugins -> buildSrc

This seems to be the standard convention for custom build plugins

Author: fwcd

gradle/plugins/kotlin-plugins/build.gradle.kts renamed to buildSrc/build.gradle.kts

@@ -3,5 +3,3 @@ dependencyResolutionManagement {
         gradlePluginPortal()
     }
 }
-
-include("kotlin-plugins")

gradle/plugins/settings.gradle.kts renamed to buildSrc/settings.gradle.kts

@@ -6,7 +6,7 @@ plugins {
     id("application")
     id("com.github.jk1.tcdeps")
     id("com.jaredsburrows.license")
-    id("configure-publishing")
+    id("kotlin-language-server.configure-publishing")
 }
 
 val projectVersion = "1.3.2"

gradle/plugins/kotlin-plugins/src/main/kotlin/configure-publishing.gradle.kts renamed to buildSrc/src/main/kotlin/kotlin-language-server.configure-publishing.gradle.kts

@@ -24,8 +24,6 @@ pluginManagement {
         id("com.github.jk1.tcdeps") version "1.2" apply false
         id("com.jaredsburrows.license") version "0.8.42" apply false
     }
-
-    includeBuild("gradle/plugins")
 }
 
 dependencyResolutionManagement {