Added ProxyInterceptor payload (#82)

* Sets specified proxy and imports certificate for  MITM

* Update cert.pem

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update vars.ps1

* Update payload.txt

* Update README.md

* Update README.md

payloads/library/Proxy_Interceptor/README.md

@@ -0,0 +1,30 @@
+# Proxy Interceptor for Bash Bunny
+
+Author: NightStalker
+
+Version: 1.0
+
+## Description
+
+This payload will enable a proxy and import an SSL certificate to a Windows
+computer for Internet Explorer and Chrome (FireFox is in progress for 2.0)
+The script uses a combination of Ducky Code and PowerShell.
+
+*Note: Currently no falure LED, if remains red for more than 60 seconds
+script failed. Will build checks in later version.
+
+## Requirements
+
+Certificate needs to be in .pem format and in the root switch directory with
+payload.txt, set the certificate and proxy information in the vars.ps1 file.
+
+## STATUS
+
+| LED              | Status                                |
+| ---------------- | ------------------------------------- |
+| White (blinking) | Script Running.                       |
+| Purple (blinging)| Script Complete.                      |
+
+## Discussion
+
+https://forums.hak5.org/index.php?/topic/40476-payload-proxy-interceptor/