Add xarm as package

pyproject.toml

@@ -7,6 +7,7 @@ authors = [
 ]
 maintainers = [
     "Alexander Soare <alexander.soare159@gmail.com>",
+    "Quentin Gallouédec <quentin.gallouedec@ec-lyon.fr>",
     "Simon Alibert <alibert.sim@gmail.com>",
 ]
 repository = "https://github.com/Cadene/lerobot"
@@ -57,10 +58,12 @@ gymnasium-robotics = "^1.2.4"
 gymnasium = "^0.29.1"
 cmake = "^3.29.0.1"
 sim-pusht = { version = "^0.1.0", optional = true}
+sim-xarm = { version = "^0.1.0", optional = true}
 
 
 [tool.poetry.extras]
 pusht = ["sim-pusht"]
+xarm = ["sim-xarm"]
 
 
 [tool.poetry.group.dev.dependencies]
@@ -106,7 +109,7 @@ select = ["E4", "E7", "E9", "F", "I", "N", "B", "C4", "SIM"]
 ignore-init-module-imports = true
 
 [tool.ruff.lint.isort]
-known-first-party = ["pusht"]
+known-first-party = ["pusht", "xarm"]
 
 [tool.poetry-dynamic-versioning]
 enable = true