Add config param to specify offset/length for single and program account info (#11515)

* Add config param to specify dataSlice for account info and program accounts

* Use match instead of if

docs/src/apps/jsonrpc-api.md

@@ -158,6 +158,7 @@ Returns all information associated with the account of provided Pubkey
   - (optional) [Commitment](jsonrpc-api.md#configuring-state-commitment)
   - (optional) `encoding: <string>` - encoding for Account data, either "binary", "binary64", or jsonParsed". If parameter not provided, the default encoding is "binary". "binary" is base-58 encoded and limited to Account data of less than 128 bytes. "binary64" will return base64 encoded data for Account data of any size.
     Parsed-JSON encoding attempts to use program-specific state parsers to return more human-readable and explicit account state data. If parsed-JSON is requested but a parser cannot be found, the field falls back to binary encoding, detectable when the `data` field is type `<string>`. **jsonParsed encoding is UNSTABLE**
+  - (optional) `dataSlice: <object>` - limit the returned account data using the provided `offset: <usize>` and `length: <usize>` fields; only available for "binary" or "binary64" encoding.
 
 #### Results:
 
@@ -845,6 +846,7 @@ Returns all accounts owned by the provided program Pubkey
   - (optional) [Commitment](jsonrpc-api.md#configuring-state-commitment)
   - (optional) `encoding: <string>` - encoding for Account data, either "binary" or jsonParsed". If parameter not provided, the default encoding is binary.
     Parsed-JSON encoding attempts to use program-specific state parsers to return more human-readable and explicit account state data. If parsed-JSON is requested but a parser cannot be found, the field falls back to binary encoding, detectable when the `data` field is type `<string>`. **jsonParsed encoding is UNSTABLE**
+  - (optional) `dataSlice: <object>` - limit the returned account data using the provided `offset: <usize>` and `length: <usize>` fields; only available for "binary" or "binary64" encoding.
   - (optional) `filters: <array>` - filter results using various [filter objects](jsonrpc-api.md#filters); account must meet all filter criteria to be included in results
 
 ##### Filters:
@@ -1099,6 +1101,7 @@ Returns all SPL Token accounts by approved Delegate. **UNSTABLE**
   - (optional) [Commitment](jsonrpc-api.md#configuring-state-commitment)
   - (optional) `encoding: <string>` - encoding for Account data, either "binary" or jsonParsed". If parameter not provided, the default encoding is binary.
     Parsed-JSON encoding attempts to use program-specific state parsers to return more human-readable and explicit account state data. If parsed-JSON is requested but a parser cannot be found, the field falls back to binary encoding, detectable when the `data` field is type `<string>`. **jsonParsed encoding is UNSTABLE**
+  - (optional) `dataSlice: <object>` - limit the returned account data using the provided `offset: <usize>` and `length: <usize>` fields; only available for "binary" or "binary64" encoding.
 
 #### Results:
 
@@ -1135,6 +1138,7 @@ Returns all SPL Token accounts by token owner. **UNSTABLE**
   - (optional) [Commitment](jsonrpc-api.md#configuring-state-commitment)
   - (optional) `encoding: <string>` - encoding for Account data, either "binary" or jsonParsed". If parameter not provided, the default encoding is binary.
     Parsed-JSON encoding attempts to use program-specific state parsers to return more human-readable and explicit account state data. If parsed-JSON is requested but a parser cannot be found, the field falls back to binary encoding, detectable when the `data` field is type `<string>`. **jsonParsed encoding is UNSTABLE**
+  - (optional) `dataSlice: <object>` - limit the returned account data using the provided `offset: <usize>` and `length: <usize>` fields; only available for "binary" or "binary64" encoding.
 
 #### Results: