feat: github importer (#425)

* dev: init github importer

* dev: add endpoint for creating import

* dev: create endpoint to bulk create issues

* dev: bulk issue importer

* dev: bulk create endpoints for labels and updates in issue bulk create endpoint to create labels and links

* dev: add comments in bluk create

* dev: status import endpoint and user invitaion workflow

* dev: initiate github repo sync

* dev: bulk issue sync endpoint and fix key issue in bg task

* dev: update endpoints for service imports

* dev: update labels logic

* dev: update importer task

* dev: bulk issue activities

* dev: update importer task for mapped users

* dev: update importer endpoint to send github token

* dev: update bulk import endpoint

* fix: workspace get query

* dev: update bulk import endpoints

apiserver/plane/db/models/importer.py

@@ -0,0 +1,39 @@
+# Django imports
+from django.db import models
+from django.conf import settings
+
+# Module imports
+from . import ProjectBaseModel
+
+
+class Importer(ProjectBaseModel):
+    service = models.CharField(max_length=50, choices=(("github", "GitHub"),))
+    status = models.CharField(
+        max_length=50,
+        choices=(
+            ("queued", "Queued"),
+            ("processing", "Processing"),
+            ("completed", "Completed"),
+            ("failed", "Failed"),
+        ),
+        default="queued",
+    )
+    initiated_by = models.ForeignKey(
+        settings.AUTH_USER_MODEL, on_delete=models.CASCADE, related_name="imports"
+    )
+    metadata = models.JSONField(default=dict)
+    config = models.JSONField(default=dict)
+    data = models.JSONField(default=dict)
+    token = models.ForeignKey(
+        "db.APIToken", on_delete=models.CASCADE, related_name="importer"
+    )
+
+    class Meta:
+        verbose_name = "Importer"
+        verbose_name_plural = "Importers"
+        db_table = "importers"
+        ordering = ("-created_at",)
+
+    def __str__(self):
+        """Return name of the service"""
+        return f"{self.service} <{self.project.name}>"