Upgraded tracy package and enabled for mac with USE_TRACY for work on mac perfomance SL-18563

```
autobuild installables edit "tracy" url="https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/110561/960415/tracy-v0.7.8.578230-darwin64-578230.tar.bz2" hash="70f31fa71ecb52bd092da52e27c3ff8c"
autobuild installables edit "tracy" url="https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/110562/960424/tracy-v0.7.8.578230-windows-578230.tar.bz2" hash="1dc33422939adf015db85e96c5a8276e"
autobuild installables edit "tracy" url="https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/110563/960429/tracy-v0.7.8.578230-windows64-578230.tar.bz2" hash="fcc6ecece2ecb65aa36500dfa9461fb3"
```

autobuild.xml

@@ -2569,9 +2569,9 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>da7317e4a81609f624f84780f28b07de</string>
+              <string>70f31fa71ecb52bd092da52e27c3ff8c</string>
               <key>url</key>
-              <string>https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/86972/801630/tracy-v0.7.8.563351-darwin64-563351.tar.bz2</string>
+              <string>https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/110561/960415/tracy-v0.7.8.578230-darwin64-578230.tar.bz2</string>
             </map>
             <key>name</key>
             <string>darwin64</string>
@@ -2581,11 +2581,11 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>47c696cd2966c5cc3c8ba6115dd1f886</string>
+              <string>1dc33422939adf015db85e96c5a8276e</string>
               <key>hash_algorithm</key>
               <string>md5</string>
               <key>url</key>
-              <string>https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/86973/801641/tracy-v0.7.8.563351-windows-563351.tar.bz2</string>
+              <string>https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/110562/960424/tracy-v0.7.8.578230-windows-578230.tar.bz2</string>
             </map>
             <key>name</key>
             <string>windows</string>
@@ -2595,11 +2595,11 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>dff3dd1db6a4cb0b73f60a5db3ee0de2</string>
+              <string>fcc6ecece2ecb65aa36500dfa9461fb3</string>
               <key>hash_algorithm</key>
               <string>md5</string>
               <key>url</key>
-              <string>https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/100101/882119/tracy-v0.8.1.571983-windows64-571983.tar.bz2</string>
+              <string>https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/110563/960429/tracy-v0.7.8.578230-windows64-578230.tar.bz2</string>
             </map>
             <key>name</key>
             <string>windows64</string>
@@ -2610,7 +2610,7 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
         <key>source_type</key>
         <string>git</string>
         <key>version</key>
-        <string>v0.7.8.563351</string>
+        <string>v0.7.8.578230</string>
       </map>
       <key>tut</key>
       <map>

indra/cmake/LLCommon.cmake

@@ -34,6 +34,7 @@ else (LINUX)
         ${BOOST_CONTEXT_LIBRARY} 
         ${BOOST_THREAD_LIBRARY} 
         ${BOOST_SYSTEM_LIBRARY}
+        ${TRACY_LIBRARY}
         )
 endif (LINUX)
 

indra/cmake/Tracy.cmake

@@ -17,6 +17,7 @@ if (USE_TRACY)
 
   if (DARWIN)
     MESSAGE(STATUS "Including Tracy for Darwin: '${TRACY_INCLUDE_DIR}'")
+    set(TRACY_LIBRARY "tracy")
   endif (DARWIN)
 
   if (LINUX)