Prepare withdraw routes part of the HP managament

Requires: !306 (merged)

clive/__private/core/hive_to_vests.py

+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+from clive.models import Asset
+
+if TYPE_CHECKING:
+    from clive.models.aliased import DynamicGlobalProperties
+
+
+def hive_to_vests(amount: int | Asset.Hive, gdpo: DynamicGlobalProperties) -> Asset.Vests:
+    if isinstance(amount, Asset.Hive):
+        amount = int(amount.amount)
+
+    return Asset.Vests(
+        amount=int(amount * int(gdpo.total_vesting_shares.amount) / int(gdpo.total_vesting_fund_hive.amount))
+    )