refactor(pose_initializer): rework parameters

Signed-off-by: PhoebeWu21 <wwcphoebe@gmail.com>

Author: PhoebeWu21

localization/pose_initializer/schema/pose_initializer.schema.json

@@ -13,7 +13,7 @@
           "minimum": 0.0
         },
         "stop_check_enabled": {
-          "type": "boolean",
+          "type": "string",
           "description": "If true, initialization is accepted only when the vehicle is stopped.",
           "default": "true"
         },
@@ -24,22 +24,22 @@
           "minimum": 0.0
         },
         "ekf_enabled": {
-          "type": "boolean",
+          "type": "string",
           "description": "If true, EKF localizer is activated.",
           "default": "true"
         },
         "gnss_enabled": {
-          "type": "boolean",
+          "type": "string",
           "description": "If true, use the GNSS pose when no pose is specified.",
           "default": "true"
         },
         "yabloc_enabled": {
-          "type": "boolean",
+          "type": "string",
           "description": "If true, YabLocModule is used.",
           "default": "true"
         },
         "ndt_enabled": {
-          "type": "boolean",
+          "type": "string",
           "description": "If true, the pose will be estimated by NDT scan matcher, otherwise it is passed through.",
           "default": "true"
         },