docs: add Components documentation

docs/manual/en_US/components.md

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+# Supporting Components
+
+## Data Container
+
+- array: Dynamic array, also with stack APIs
+- bloom: Bloom filter
+- btree: B+ tree
+- circle: Circular queue
+- fifo: First in first out (single read/write needn't lock)
+- hashmap: Hash map with burst rehash
+- hashtbl: Hash table tools
+- heap: Binary heap tree
+- hlist: Hash linked list
+- ilist: Index linked list
+- list: Double linked list
+- llist: Lock free linked list
+- radix: Radix tree
+- rbtree: Red black tree
+- ringbuf: Ring buffer
+- segtree: Segment tree
+- skiplist: Skip list
+- slist: Single linked list
+
+## Algorithms
+
+- arc4: RC4 stream cipher
+- ascii85: Ascii85 binary-to-text encoding
+- base32: Base32 binary-to-text encoding
+- base64: Base64 binary-to-text encoding
+- bsearch: Array binary search
+- crc: Cyclic redundancy check
+- hash: Golden ratio hash
+- md5: MD5 message-digest algorithm
+- prandom: Pseudo random generator
+- sha1: Secure hash algorithm 1
+- sha2: Secure hash algorithm 2 (sha224 / sha256)
+- stringhash: String hash functions
+
+## Bit Operation
+
+- bcd: Binary-coded-decimal encoding
+- bitfield: Bit padding functions
+- bitmap: Bitmap operations
+- bitops: Bit operations
+- bitrev: Bitwise reversal
+- bitwalk: Bitmap iterator
+- popcount: Bitwise statistics
+
+## Architecture
+
+- atomic: Atomic operation functions
+- byteorder: Byte order exchange
+- cmpxchg: Atomic compare and exchange
+- overflow: Saturation operations
+- swab: Byte exchange functions
+- unaligned: Non-aligned access functions
+
+## Memory Allocator
+
+- allocator: Allocation compatibility layer
+- allocpool: Mempool optimized for allocation performance
+- memalloc: Memory allocator algorithm
+
+## String Process
+
+- argv: Argv segmentation
+- fsm: Finite state machine
+- levenshtein: Levenshtein edit distance
+- scnprintf: Safe snprintf in buffer
+
+## Mathematics
+
+- align: Alignment functions
+- dword: Double word calculate
+- log2: Log2 calculate
+- math: Mathematical methods
+- minmax: Maximum and minimum value
+- uplower: High and low bytes
+- mpi: Multi precision integer
+
+## Rate limiting
+
+- ratelimit: Fixed Window Counter Rate Limiter
+- tokenbucket: Token Bucket Rate Limiter
+
+## Cache
+
+- lfu: Least-frequently-used cache
+- lru: Least-recently-used cache
+
+## Textsearch
+
+- bm: Boyer–Moore string-search algorithm
+- kmp: Knuth–Morris–Pratt string-search algorithm
+- sunday：Sunday string-search algorithm
+
+## Miscellaneous
+
+- action: Callback function framework
+- callback: Dummy callbacks
+- guards: Clear variable when goes out of scope
+- log: Log framework
+- notifier: Notifier chain
+- once: Do once functions

docs/manual/index.md

@@ -16,3 +16,8 @@
 - [Allocpool](en_US/allocpool.md)
 - [Array](en_US/array.md)
 - [Bloom Filter](en_US/bloom.md)
+
+## Components
+
+- [Components](en_US/components.md)
+- [Components (Chinese)](zh_CN/components-zh.md)