Move CompactDecimalFormatter into icu_decimal (#7565)

Author: robertbastian

Cargo.lock

@@ -27,6 +27,9 @@ writeable = { workspace = true }
 zerovec = { workspace = true, features = ["alloc"] }
 databake = { workspace = true, features = ["derive"], optional = true}
 serde = { workspace = true, features = ["derive"], optional = true }
+icu_plurals = { workspace = true, optional = true }
+icu_pattern = { workspace = true, features = ["zerovec"], optional = true }
+displaydoc = { workspace = true }
 
 icu_decimal_data = { workspace = true, optional = true }
 icu_locale = { workspace = true, optional = true }
@@ -44,11 +47,12 @@ criterion = { workspace = true }
 
 [features]
 default = ["compiled_data"]
-serde = ["dep:serde", "icu_provider/serde", "zerovec/serde"]
-datagen = ["serde", "dep:databake", "zerovec/databake", "icu_provider/export", "alloc"]
-compiled_data = ["dep:icu_decimal_data", "dep:icu_locale", "icu_locale?/compiled_data", "icu_provider/baked"]
+serde = ["dep:serde", "icu_provider/serde", "zerovec/serde", "icu_pattern?/serde", "icu_plurals?/serde"]
+datagen = ["serde", "dep:databake", "zerovec/databake", "icu_provider/export", "alloc", "icu_plurals?/datagen"]
+compiled_data = ["dep:icu_decimal_data", "dep:icu_locale", "icu_locale?/compiled_data", "icu_provider/baked", "icu_plurals?/compiled_data"]
 ryu = ["fixed_decimal/ryu"]
 alloc = ["serde?/alloc", "zerovec/alloc"]
+unstable = ["alloc", "dep:icu_pattern", "dep:icu_plurals"]
 
 [[bench]]
 name = "fixed_decimal_format"