Add Travis config

Author: ethanhann

.travis.yml

@@ -0,0 +1,15 @@
+sudo: required
+services: docker
+before_install:
+  - phpenv config-add travis-php.ini
+  - docker run -d -p 6379:6379 redislabs/redisearch:latest --protected-mode no --loadmodule /var/lib/redis/modules/redisearch.so
+language: csharp
+solution: InEngine.Net.sln
+
+sudo: false
+cache: apt
+
+script:
+  - xbuild /p:Configuration=Release ./src
+  - mono src/packages/NUnit.ConsoleRunner.3.7.0/tools/nunit3-console.exe ./src/InEngine.Core.Test/bin/Release/InEngine.Core.Test.dll
+

src/InEngine.Core.Test/packages.config

@@ -8,5 +8,6 @@
   <package id="Moq" version="4.7.145" targetFramework="net461" />
   <package id="NLog" version="4.4.12" targetFramework="net461" />
   <package id="NUnit" version="3.9.0" targetFramework="net461" />
+  <package id="NUnit.ConsoleRunner" version="3.7.0" targetFramework="net47" />
   <package id="Quartz" version="2.6.1" targetFramework="net461" />
 </packages>