Deps update for picotls in Travis

.travis.yml

@@ -15,10 +15,21 @@ addons:
       - libpcap-dev
       - openssl
       - libssl-dev
+      - faketime
+      - libscope-guard-perl
+      - libtest-tcp-perl
+  homebrew:
+    packages:
+      - openssl
+      - libpcap
+      - tcpdump
+      - libfaketime
 
 before_install:
-  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update; fi
-  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install tcpdump libpcap openssl; fi 
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then export CMAKE_OPTS=" -DOPENSSL_ROOT_DIR=/usr/local/opt/openssl/"; fi
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then curl -L https://cpanmin.us | sudo perl - App::cpanminus; fi
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then sudo cpanm --notest Scope::Guard; fi
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then sudo cpanm --notest Test::TCP; fi
 
 install:
   - go get -t -v ./... || true