support python 3.7 in ci

Author: nbcsm

ci_build/azure_pipelines/pretrained_model_test-matrix.yml

@@ -5,7 +5,17 @@ jobs:
   parameters:
     platforms: ['linux', 'windows', 'mac']
     python_versions: ['3.6', '3.5']
-    tf_versions: ['1.13.1', '1.12', '1.11', '1.10', '1.9', '1.8', '1.7', '1.6', '1.5']
+    tf_versions: ['1.12', '1.11', '1.10', '1.9', '1.8', '1.7', '1.6', '1.5']
+    onnx_opsets: ['9', '8', '7']
+    job:
+      steps:
+      - template: 'pretrained_model_test.yml'
+
+- template: 'templates/job_generator.yml'
+  parameters:
+    platforms: ['linux', 'windows', 'mac']
+    python_versions: ['3.7', '3.6', '3.5']
+    tf_versions: ['1.13.1']
     onnx_opsets: ['9', '8', '7']
     job:
       steps:

ci_build/azure_pipelines/pretrained_model_test.yml

@@ -3,7 +3,7 @@
 jobs:
 - template: 'templates/job_generator.yml'
   parameters:
-    python_versions: ['3.6', '3.5']
+    python_versions: ['3.7', '3.6', '3.5']
     tf_versions: ['1.13.1']
     onnx_opsets: ['9', '8', '7']
     job:

ci_build/azure_pipelines/unit_test-matrix.yml

@@ -5,7 +5,16 @@ jobs:
   parameters:
     platforms: ['linux', 'windows', 'mac']
     python_versions: ['3.6', '3.5']
-    tf_versions: ['1.13.1', '1.12', '1.11', '1.10', '1.9', '1.8', '1.7', '1.6', '1.5']
+    tf_versions: ['1.12', '1.11', '1.10', '1.9', '1.8', '1.7', '1.6', '1.5']
+    job:
+      steps:
+      - template: 'unit_test.yml'
+
+- template: 'templates/job_generator.yml'
+  parameters:
+    platforms: ['linux', 'windows', 'mac']
+    python_versions: ['3.7']
+    tf_versions: ['1.13.1']
     job:
       steps:
       - template: 'unit_test.yml'

ci_build/azure_pipelines/unit_test.yml

@@ -3,7 +3,7 @@
 jobs:
 - template: 'templates/job_generator.yml'
   parameters:
-    python_versions: ['3.6', '3.5']
+    python_versions: ['3.7', '3.6', '3.5']
     tf_versions: ['1.13.1']
     job:
       steps: