Update crates

Author: qryxip

Cargo.lock

@@ -31,6 +31,12 @@ rand_chacha = "=0.2.1"
 rand_pcg = "=0.2.0"
 rand_distr = "=0.2.2"
 
+# グラフ
+petgraph = "=0.4.13"
+
+# 挿入順を保持するhash table
+indexmap = "=1.3.0"
+
 # 正規表現
 regex = "=1.3.1"
 
@@ -53,6 +59,9 @@ superslice = "=1.0.0"
 # イテレータの強化
 itertools = "=0.8.1"
 
+# `if`と`if let`を『まとめる』マクロ`if_chain!`
+if_chain = "=1.0.0"
+
 # `hashmap!`, `hashset!`, `btreemap!`, `btreeset!`
 maplit =  "=1.0.2"