Initial project import

tools/v/vlib/net/conv/README.md

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+## Description
+
+`net.conv` provides a convenient way to convert number values *to*,
+and *from* the network byte order format (which is always big endian).
+
+When communicating across a network, it is possible that the machines
+use different byte orders, since the host format of each system can
+vary, depending on the CPU, and on most systems, is usually
+little endian.
+
+To avoid mismatches due to that, the network byte order is used by
+convention to send network data in a manner that will be received
+coherently, regardless of the endianness of the sender system and
+the receiver system.