Cleanup PGProperty, sort values, and add some missing to docs (#1686)

* misc: Add PGProperty.getDescription()

* misc: Remove variadic constructor for PGProperty values and split across multiple lines

* perf: Cache PGProperty values in a map by name

* misc: Add PGProperty.isRequired()

* misc: Add PGProperty.isDeprecated()

* docs: Correct receiveBufferSize and remove duplicate sendBufferSize

* docs: Add missing binaryTransfer property to head docs

* docs: Add missing databaseMetadataCacheFields and databaseMetadataCacheFieldsMiB to head docs

* misc: Sort PGProperty enum values

README.md

@@ -122,7 +122,7 @@ In addition to the standard connection parameters the driver supports a number o
 | sslpasswordcallback           | String  | null    | The name of a class (for use in [Class.forName(String)](https://docs.oracle.com/javase/6/docs/api/java/lang/Class.html#forName%28java.lang.String%29)) that implements javax.security.auth.callback.CallbackHandler and can handle PasswordCallback for the ssl password. |
 | sslpassword                   | String  | null    | The password for the client's ssl key (ignored if sslpasswordcallback is set) |
 | sendBufferSize                | Integer | -1      | Socket write buffer size |
-| recvBufferSize                | Integer | -1      | Socket read buffer size  |
+| receiveBufferSize             | Integer | -1      | Socket read buffer size  |
 | loggerLevel                   | String  | null    | Logger level of the driver using java.util.logging. Allowed values: OFF, DEBUG or TRACE. |
 | loggerFile                    | String  | null    | File name output of the Logger, if set, the Logger will use a FileHandler to write to a specified file. If the parameter is not set or the file can't be created the ConsoleHandler will be used instead. |
 | allowEncodingChanges          | Boolean | false   | Allow for changes in client_encoding |

docs/documentation/92/connect.md

@@ -111,7 +111,7 @@ connection.
 * `sendBufferSize = int`
 	Sets SO_SNDBUF on the connection stream
 
-* `recvBufferSize = int`
+* `receiveBufferSize = int`
 	Sets SO_RCVBUF on the connection stream
 
 * `protocolVersion = String`

docs/documentation/93/connect.md

@@ -111,7 +111,7 @@ connection.
 * `sendBufferSize = int`
 	Sets SO_SNDBUF on the connection stream
 
-* `recvBufferSize = int`
+* `receiveBufferSize = int`
 	Sets SO_RCVBUF on the connection stream
 
 * `protocolVersion = String`

docs/documentation/94/connect.md

@@ -118,14 +118,10 @@ connection.
 
 	Sets SO_SNDBUF on the connection stream
 
-* `recvBufferSize = int`
+* `receiveBufferSize = int`
 
 	Sets SO_RCVBUF on the connection stream
 
-* `receiveBufferSize = int`  
-
-	Sets SO_RCVBUF on the connection stream
-
 * `protocolVersion = String`
 
 	The driver supports both the V2 and V3 frontend/backend protocols. The

docs/documentation/head/connect.md

@@ -158,14 +158,6 @@ Connection conn = DriverManager.getConnection(url);
 
 	If provided will be used by ConsoleCallbackHandler
 
-* **sendBufferSize** = int
-
-	Sets SO_SNDBUF on the connection stream
-
-* **recvBufferSize** = int
-
-	Sets SO_RCVBUF on the connection stream
-
 * **protocolVersion** = int
 
 	The driver supports the V3 frontend/backend protocols. The V3 protocol was introduced in 7.4 and
@@ -228,6 +220,12 @@ Connection conn = DriverManager.getConnection(url);
 
     The default is 'false'
 
+* **binaryTransfer** = boolean
+
+	Use binary format for sending and receiving data if possible.
+
+	The default is 'true'
+
 * **binaryTransferEnable** = String
 
 	A comma separated list of types to enable binary transfer. Either OID numbers or names.
@@ -237,6 +235,20 @@ Connection conn = DriverManager.getConnection(url);
 	A comma separated list of types to disable binary transfer. Either OID numbers or names.
 	Overrides values in the driver default set and values set with binaryTransferEnable.
 
+* **databaseMetadataCacheFields** = int
+
+	Specifies the maximum number of fields to be cached per connection.
+	A value of 0 disables the cache.
+
+	Defaults to 65536.
+
+* **databaseMetadataCacheFieldsMiB** = int
+
+	Specifies the maximum size (in megabytes) of fields to be cached per connection.
+	A value of 0 disables the cache.
+
+	Defaults to 5.
+
 * **prepareThreshold** = int
 
 	Determine the number of `PreparedStatement` executions required before