github-ci: add simple CI based on GitHub actions

- Add new .github/workflows/fast_testing.yml file
- Delete old .travis.yml file
- Delete old Jenkinsfile script
- Delete old test.sh script

In the provided workflow we install tarantool (1.10, 2.8, 2.9)
and just run tests from the module against it.

Closes #150

Author: ylobankov

.github/workflows/fast_testing.yml

@@ -0,0 +1,33 @@
+name: fast_testing
+
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+      - 'master'
+    tags:
+      - '*'
+
+jobs:
+  run_tests:
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        tarantool:
+          - '1.10'
+          - '2.8'
+          - '2.9'
+
+    steps:
+      - name: Clone the module
+        uses: actions/checkout@v2
+
+      - name: Setup tarantool ${{ matrix.tarantool }}
+        uses: tarantool/setup-tarantool@v1
+        with:
+          tarantool-version: ${{ matrix.tarantool }}
+
+      - run: cmake . && make check