Add workflows for each language

.github/workflows/c.yaml

@@ -0,0 +1,13 @@
+name: C
+
+on:
+    push:
+jobs:
+    build:
+        runs-on: ubuntu-latest
+        steps:
+        - uses: actions/checkout@v1
+        - name: run tests
+          run: |
+              make c
+              ./planck < bootstrap.fs runtests.fs

.github/workflows/i386-linux-handwrite.yml

@@ -1,4 +1,4 @@
-name: run basic tests
+name: i386-linux-handwrite
 
 on:
     push:
@@ -7,7 +7,7 @@ jobs:
         runs-on: ubuntu-latest
         steps:
         - uses: actions/checkout@v1
-        - name: i386-linux handwrite
+        - name: run tests
           run: |
               make
               ./planck < bootstrap.fs runtests.fs

.github/workflows/python.yaml

@@ -0,0 +1,13 @@
+name: python
+
+on:
+    push:
+jobs:
+    build:
+        runs-on: ubuntu-latest
+        steps:
+        - uses: actions/checkout@v1
+        - name: run tests
+          run: |
+              make python
+              ./planck < bootstrap.fs runtests.fs