[v0.4] Move lasso SQL cache in Steve (#473)

* Copy pkg/cache/sql from lasso to pkg/sqlcache

* Rename import from github.com/rancher/lasso/pkg/cache/sql to github.com/rancher/steve/pkg/sqlcache

* go mod tidy

* Fix lint errors

* Remove lasso SQL cache mentions

* Fix more CI lint errors

* fix goimports

Signed-off-by: Silvio Moioli <silvio@moioli.net>

* Fix imports

* Fix more linting errors

---------

Signed-off-by: Silvio Moioli <silvio@moioli.net>
Co-authored-by: Silvio Moioli <silvio@moioli.net>

pkg/sqlcache/informer/shared_informer_hack.go

@@ -0,0 +1,22 @@
+package informer
+
+import (
+	"reflect"
+	"unsafe"
+)
+
+// UnsafeSet replaces the passed object's field value with the passed value.
+func UnsafeSet(object any, field string, value any) {
+	rs := reflect.ValueOf(object).Elem()
+	rf := rs.FieldByName(field)
+	wrf := reflect.NewAt(rf.Type(), unsafe.Pointer(rf.UnsafeAddr())).Elem()
+	wrf.Set(reflect.ValueOf(value))
+}
+
+// UnsafeGet returns the value of the passed object's for the passed field.
+func UnsafeGet(object any, field string) any {
+	rs := reflect.ValueOf(object).Elem()
+	rf := rs.FieldByName(field)
+	wrf := reflect.NewAt(rf.Type(), unsafe.Pointer(rf.UnsafeAddr())).Elem()
+	return wrf.Interface()
+}