ICU 56 step 4: Apply post-56 fixes for measure/date format

patches/relative_date.patch

Index: patches/relative_date.patch
diff --git a/patches/relative_date.patch b/patches/relative_date.patch
new file mode 100644
index 0000000000000000000000000000000000000000..56dcb850ab5e425192b94dab4c320ac8dfde4241
--- /dev/null
+++ b/patches/relative_date.patch
@@ -0,0 +1,48 @@
+diff --git a/source/data/locales/en_GB.txt b/source/data/locales/en_GB.txt
+index a4f64fa..29e8f2a 100644
+--- a/source/data/locales/en_GB.txt
++++ b/source/data/locales/en_GB.txt
+@@ -119,9 +119,11 @@ en_GB{
+             relativeTime{
+                 future{
+                     one{"in {0} mo"}
++                    other{"in {0} mo"}
+                 }
+                 past{
+                     one{"{0} mo ago"}
++                    other{"{0} mo ago"}
+                 }
+             }
+         }
+@@ -143,9 +145,11 @@ en_GB{
+             relativeTime{
+                 future{
+                     one{"in {0} qtr"}
++                    other{"in {0} qtr"}
+                 }
+                 past{
+                     one{"{0} qtr ago"}
++                    other{"{0} qtr ago"}
+                 }
+             }
+         }
+@@ -192,6 +196,7 @@ en_GB{
+             relativeTime{
+                 future{
+                     one{"in {0} wk"}
++                    other{"in {0} wk"}
+                 }
+                 past{
+                     one{"{0} wk ago"}
+@@ -216,9 +221,11 @@ en_GB{
+             relativeTime{
+                 future{
+                     one{"in {0} yr"}
++                    other{"in {0} yr"}
+                 }
+                 past{
+                     one{"{0} yr ago"}
++                    other{"{0} yr ago"}
+                 }
+             }
+         }