Added configuration file for Travis CI. I tried to write the configuration,...

Added configuration file for Travis CI. I tried to write the configuration, the library was assembled and then the test was started.

.travis.yml

+sudo: required
+language: cpp
+compiler: gcc
+dist: xenial
+notifications:
+  email: false
+
+before_install:
+    - git submodule init
+    - git submodule update
+
+language: python
+python: 
+  - "3.7-dev"
+
+script:
+  - mkdir build
+  - cd build
+  - cmake -DBUILD_DAP_PYTHON_TESTS=ON ../
+  - make
+  - python3.7 main_test.py
+
+addons:
+  apt:
+    sources:
+    - ubuntu-toolchain-r-test
+    packages:
+    - python3.7-dev
+    - libjson-c-dev
+    - libev-dev
+    - libmagic-dev
+    - libldb-dev
+    - libtevent-dev
+    - libcurl4-gnutls-dev
+