Replace core:* to base:* where appropriate

core/text/edit/text_edit.odin

@@ -6,7 +6,7 @@ package text_edit
 		* https://rxi.github.io/a_simple_undo_system.html
 */
 
-import "core:runtime"
+import "base:runtime"
 import "core:time"
 import "core:mem"
 import "core:strings"

core/text/match/strlib.odin

@@ -1,6 +1,6 @@
 package text_match
 
-import "core:runtime"
+import "base:runtime"
 import "core:unicode"
 import "core:unicode/utf8"
 import "core:strings"

core/text/table/table.odin

@@ -12,7 +12,7 @@ import "core:io"
 import "core:fmt"
 import "core:mem"
 import "core:mem/virtual"
-import "core:runtime"
+import "base:runtime"
 
 Cell :: struct {
 	text: string,