[TF][FIX] add jlatexmath project to settings.gradle and fix libressl excludeDir

Author: Kartatz

TMessagesProj/build.gradle

@@ -10,7 +10,7 @@ idea {
             file('jni/third_party'),
             file('jni/ffmpeg'),
             file('jni/tlottie'),
-            file('jni/boringssl'),
+            file('jni/libressl'),
             file('jni/sqlite')
         ]
     }

settings.gradle

@@ -1,2 +1,4 @@
 include ':TMessagesProj'
 include ':TMessagesProj_App'
+include ':jlatexmath'
+project(':jlatexmath').projectDir = new File('TMessagesProj/lib/jlatexmath/jlatexmath')