finish for init core

fuware/repos/repository_users.py

@@ -0,0 +1,28 @@
+from fuware.core.security.hasher import get_hasher
+from fuware.db.models.users.users import User
+from fuware.schemas import UserCreate
+from sqlalchemy.orm import Session
+
+
+class RepositoryUsers:
+  def __init__(self):
+    self.user = User()
+
+  def get_all(self, skip: int = 0, limit: int = 100):
+    return self.user.query.offset(skip).limit(limit).all()
+
+  def get_by_username(self, username: str):
+    return self.user.query.filter_by(username=username).first()
+
+  def create(self, db: Session, user: UserCreate):
+    try:
+      hasher = get_hasher()
+      db_user = User(username=user.username, password=hasher.hash(user.password), name=user.name)
+      db.add(db_user)
+      db.commit()
+    except Exception:
+      db.rollback()
+      raise
+
+    db.refresh(db_user)
+    return db_user