[Buttons] Deprecate MDCOutlinedButtonThemer

[galiak11]

Description

Deprecate symbol MDCOutlinedButtonThemer(ToBeDeprecated)::applyScheme:toButton:

Issue

b/145204562 - Delete symbol "MDCOutlinedButtonThemer(ToBeDeprecated)::applyScheme:toButton:"

Note: no internal dependencies, or dependencies are being migrated.

[material-automation]

Based on the changes, the title has been prefixed with [Buttons].

[material-automation]

bazel detected changes to the following targets:

//components/Buttons:unit_tests
//components/Buttons:unit_tests_IPAD_PRO_12_9_IN_9_3
//components/Buttons:unit_tests_IPAD_PRO_12_9_IN_9_3_test_bundle
//components/Buttons:unit_tests_IPHONE_7_PLUS_IN_10_3
//components/Buttons:unit_tests_IPHONE_7_PLUS_IN_10_3_test_bundle
//components/Buttons:unit_tests_environment
//components/Buttons:unit_tests_environment_test_bundle
//components/Dialogs:unit_tests
//components/Dialogs:unit_tests_IPAD_PRO_12_9_IN_9_3
//components/Dialogs:unit_tests_IPAD_PRO_12_9_IN_9_3_test_bundle
//components/Dialogs:unit_tests_IPHONE_7_PLUS_IN_10_3
//components/Dialogs:unit_tests_IPHONE_7_PLUS_IN_10_3_test_bundle
//components/Dialogs:unit_tests_environment
//components/Dialogs:unit_tests_environment_test_bundle

[material-automation]

API diff detected the following changes

Buttons+ButtonThemer

MDCOutlinedButtonThemer(ToBeDeprecated)

removed category: MDCOutlinedButtonThemer(ToBeDeprecated)

MDCOutlinedButtonThemer

modified class method: +applyScheme:toButton: in MDCOutlinedButtonThemer

Type of change:	parent.usr
From:	c:objc(cy)MDCOutlinedButtonThemer@ToBeDeprecated
To:	c:objc(cs)MDCOutlinedButtonThemer

modified class: MDCOutlinedButtonThemer

Type of change:	Declaration
From:	@interface MDCOutlinedButtonThemer : NSObject
To:	@interface MDCOutlinedButtonThemer : NSObject

modified class: MDCOutlinedButtonThemer

Type of change:	Deprecation message
From:	``
To:	Please use MDCButton:applyOutlinedThemeWithScheme: instead.

modified class: MDCOutlinedButtonThemer

Type of change:	Deprecation
From:	0
To:	1