Add AIKIDO_DISABLE support

Author: bitterpanda63

agent/src/main/java/dev/aikido/agent/Agent.java

@@ -1,6 +1,7 @@
 package dev.aikido.agent;
 
 import dev.aikido.agent.wrappers.*;
+import dev.aikido.agent_api.helpers.env.BooleanEnv;
 import dev.aikido.agent_api.helpers.logging.LogManager;
 import dev.aikido.agent_api.helpers.logging.Logger;
 import net.bytebuddy.agent.builder.AgentBuilder;
@@ -17,6 +18,10 @@
 public class Agent {
     private static final Logger logger = LogManager.getLogger(Agent.class);
     public static void premain(String agentArgs, Instrumentation inst) {
+        // Check for 'AIKIDO_DISABLE' :
+        if (new BooleanEnv("AIKIDO_DISABLE", /*default value*/ false).getValue()) {
+            return; // AIKIDO_DISABLE is true, so we will not be wrapping anything.
+        }
         logger.info("Aikido Java Agent loaded.");
         setAikidoSysProperties();