Add CPU info, memory info, jvm info api

src/main/kotlin/top/fatweb/api/vo/system/CpuInfoVo.kt

@@ -0,0 +1,16 @@
+package top.fatweb.api.vo.system
+
+import com.fasterxml.jackson.annotation.JsonInclude
+
+@JsonInclude(JsonInclude.Include.NON_EMPTY)
+data class CpuInfoVo(
+    val user: Long,
+    val nice: Long,
+    val system: Long,
+    val idle: Long,
+    val iowait: Long,
+    val irq: Long,
+    val softirq: Long,
+    val steal: Long,
+    val processors: MutableList<CpuInfoVo>? = null
+)

src/main/kotlin/top/fatweb/api/vo/system/JvmInfoVo.kt

@@ -0,0 +1,6 @@
+package top.fatweb.api.vo.system
+
+data class JvmInfoVo(
+    val totalMemory: Long,
+    val freeMemory: Long,
+)

src/main/kotlin/top/fatweb/api/vo/system/MemoryInfoVo.kt

@@ -0,0 +1,10 @@
+package top.fatweb.api.vo.system
+
+data class MemoryInfoVo(
+    val total: Long,
+    val free: Long,
+    val virtualInUse: Long,
+    val virtualMax: Long,
+    val swapTotal: Long,
+    val swapUsed: Long
+)