Add new --ignore-requirements arg

Per code review, also offer --ignore-requirements as a way to install
themes and plugins that don't meet the listed requirements

Author: mrsdizzie

src/Plugin_Command.php

@@ -593,7 +593,7 @@ protected function install_from_repo( $slug, $assoc_args ) {
 			return $api;
 		}
 
-		if ( isset( $assoc_args['version'] ) ) {
+		if ( isset( $assoc_args['version'] ) || isset( $assoc_args['ignore-requirements'] ) ) {
 			self::alter_api_response( $api, $assoc_args['version'] );
 		} else {
 			$requires_php = isset( $api->requires_php ) ? $api->requires_php : null;
@@ -915,6 +915,9 @@ protected function filter_item_list( $items, $args ) {
 	 * : If set, the command will overwrite any installed version of the plugin, without prompting
 	 * for confirmation.
 	 *
+	 * [--ignore-requirements]
+	 * :If set, the command will install the plugin while ignoring any requirements specified by the plugin authors.
+	 *
 	 * [--activate]
 	 * : If set, the plugin will be activated immediately after install.
 	 *

src/Theme_Command.php

@@ -406,7 +406,7 @@ protected function install_from_repo( $slug, $assoc_args ) {
 			return $api;
 		}
 
-		if ( isset( $assoc_args['version'] ) ) {
+		if ( isset( $assoc_args['version'] ) || isset( $assoc_args['ignore-requirements'] ) ) {
 			self::alter_api_response( $api, $assoc_args['version'] );
 		} else {
 			$requires_php = isset( $api->requires_php ) ? $api->requires_php : null;
@@ -481,6 +481,9 @@ protected function filter_item_list( $items, $args ) {
 	 * : If set, the command will overwrite any installed version of the theme, without prompting
 	 * for confirmation.
 	 *
+	 * [--ignore-requirements]
+	 * : If set, the command will install the theme while ignoring any requirements specified by the theme authors.
+	 *
 	 * [--activate]
 	 * : If set, the theme will be activated immediately after install.
 	 *