Inconsistent use of resource names

[mlazdans]

Related to #82

We have defined resource names

#define LE_LINK "Firebird/InterBase link"
#define LE_PLINK "Firebird/InterBase persistent link"
#define LE_TRANS "Firebird/InterBase transaction"

Then we have defined query associated resources names here: https://github.com/FirebirdSQL/php-firebird/blob/ce45760b5e4c11962fa84a2c572a3fdef1998980/ibase_query.c#L115-L116

They are note used: https://github.com/FirebirdSQL/php-firebird/blob/ce45760b5e4c11962fa84a2c572a3fdef1998980/ibase_query.c#L219-L227

For example link resource in error messages appears as "Firebird/InterBase link" but query resource as "interbase query".