add arcTolerance configuration option

src/kiri/conf.js

@@ -578,6 +578,7 @@ const conf = exports({
                 outputInvertY: false,
                 camExpertFast: false,
                 camTrueShadow: false,
+                camArcTolerance: 0.05,
                 camForceZMax: false,
                 camFirstZMax: false,
                 camToolInit: true,

src/kiri/init.js

@@ -1281,6 +1281,7 @@ gapp.register("kiri.init", (root, exports) => {
             _____:               newGroup(LANG.op_xprt_s, $('cam-expert'), { group:"cam_expert", modes:CAM, marker: false, driven, separator }),
             camExpertFast:       newBoolean(LANG.cx_fast_s, onBooleanClick, {title:LANG.cx_fast_l, show: () => !ui.camTrueShadow.checked }),
             camTrueShadow:       newBoolean(LANG.cx_true_s, onBooleanClick, {title:LANG.cx_true_l, show: () => !ui.camExpertFast.checked }),
+            camArcTolerance:     newInput(LANG.ad_arct_s, {title:LANG.ad_arct_l, convert:toFloat, bound:bound(0,100)}),
 
             /** LASER/DRAG/WJET/WEDM cut tool Settings */