support um of LengthMap

lib/process/unit/convert/length.dart

@@ -10,5 +10,6 @@ class LengthMap extends UnitMapBase {
     add(VidUsUnit.mm, 0.1);
     add(VidUsUnit.inch, 2.54);
     add(VidUsUnit.ft, 30.48);
+    add(VidUsUnit.um, 0.0001);
   }
 }

pubspec.lock

@@ -191,8 +191,8 @@ packages:
     dependency: "direct main"
     description:
       path: "."
-      ref: "9ecd100"
-      resolved-ref: "9ecd100964bb61833ce2f011988e41054d9821c4"
+      ref: cf62b49
+      resolved-ref: cf62b49e7a1077f82238aa22151eefb77e88f613
       url: "http://git.ius.plus:88/Project-Wing/fis_lib_jsonrpc.git"
     source: git
     version: "0.0.1"
@@ -746,8 +746,8 @@ packages:
     dependency: "direct main"
     description:
       path: "."
-      ref: "1a076e5"
-      resolved-ref: "1a076e5555ea19a259822480795eb828df8c62fb"
+      ref: ba7f064d04
+      resolved-ref: ba7f064d0413b11b565c90bb19efd4c724712241
       url: "http://git.ius.plus:88/Project-Wing/flutter_vid.git"
     source: git
     version: "1.0.2"

pubspec.yaml

@@ -87,7 +87,7 @@ dependency_overrides:
   vid:
     git:
       url: http://git.ius.plus:88/Project-Wing/flutter_vid.git
-      ref: 1a076e5
+      ref: ba7f064d04
   fis_vid:
     git:
       url: http://git.ius.plus:88/Project-Wing/fis_lib_vid.git